Cyclamic acid

INS 952(i)

Listed as a sweetener by Codex, the EU and the US.

Listed as sweeteners (EU, US, Codex)
Chemical structure of Cyclamic acid, from PubChem compound 7533
Structure from PubChem CID 7533 (National Library of Medicine, public domain). A depiction of one compound: where a listing covers a family, or a substance has no single structure, this page shows none.

Cyclamic acid is the parent acid of the cyclamate sweeteners, about thirty times as sweet as sugar. In food it is normally used as the sodium or calcium salt.

Where it is and isn’t permitted

Status of Cyclamic acid by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
Australia and New ZealandFood Standards Australia New ZealandPermitted, with conditions

9 food categories

highest permitted level 20,000 mg/kg

Show every food category
  • 11.4 Tabletop sweeteners — GMP
  • 14.1.2.2.2 Low joule fruit and vegetable juice products — 400 mg/kg
  • 14.1.3 Water based flavoured drinks — 350 mg/kg
  • 14.1.3.3 Brewed soft drink — 400 mg/kgNote: Section 1.3.1—5 does not apply.
  • 20.2.0.2 Jelly — 1,600 mg/kg
  • 20.2.0.4 Sauces and toppings (including mayonnaises and salad dressings) — 1,000 mg/kg
  • 4.3.3 Commercially sterile fruits and vegetables in hermetically sealed containers — 1,350 mg/kg
  • 4.3.4 Fruit and vegetable spreads including jams, chutneys and related products — 1,000 mg/kg
  • 5.2.2 Low joule chewing gum — 20,000 mg/kg
Food Standards Code, Schedule 15, S15—5and 8 further provisionsretrieved 2026-10-17
CanadaHealth CanadaNo listing matchedHealth Canada’s lists name additives without E or INS numbers, so this site matches them by exact name. A substance listed there under a name this site does not recognise has no row here.
European UnionEuropean Commission / EFSAPermitted, with conditions

22 food categories

highest permitted level 1,000 mg/l

Show every food category
  • 1.4 flavoured fermented milk products including heat-treated products — 250 mg/lAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/l. only energy-reduced products or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 11.4.1 table-top sweeteners in liquid form — quantum satisAuthorised under E 952, Cyclamic acid and its Na and Ca salts. quantum satis.
  • 11.4.2 table-top sweeteners in powder form — quantum satisAuthorised under E 952, Cyclamic acid and its Na and Ca salts. quantum satis.
  • 11.4.3 table-top sweeteners in tablets — quantum satisAuthorised under E 952, Cyclamic acid and its Na and Ca salts. quantum satis.
  • 13.2 Foods for special medical purposes as defined by Regulation (EU) No 609/2013 (excluding products from food category 13.1.5.) — 400 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 400 mg/kg.
  • 13.3 Total diet replacement for weight control food as defined by Regulation (EU) No 609/2013 — 400 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 400 mg/kg.
  • 14.1.3 Fruit nectars as defined by Directive 2001/112/EC and vegetable nectars and similar products — 250 mg/lAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/l. only energy-reduced or with no added sugar.
  • 14.1.4 Flavoured_drinks — 250 mg/lAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/l. only energy-reduced or with no added sugar.
  • 14.2.8 Other alcoholic beverages including mixtures of alcoholic beverages with non-alcoholic beverages and other alcoholic beverages based on distilled alcohol with alcoholic strength by volume less than 15 % — 250 mg/lAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/l. only mixtures of alcoholic beverages with non-alcoholic beverage. Note 51: Maximum usable levels are expressed in free acid.
  • 16 Desserts excluding products covered in category 1 3 and 4 — 250 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/kg. only energy-reduced or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 17.1 food supplements supplied in a solid form excluding food supplements for infants and young children’, — 500 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 500 mg/kg. Note 51: Maximum usable levels are expressed in free acid.
  • 17.2 food supplements supplied in a liquid form excluding food supplements for Infants and young children — 400 mg/lAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 400 mg/l. Note 51: Maximum usable levels are expressed in free acid.
  • 18.2 Meal replacement for weight control as referred to in Commission Regulation (EU) No 432/2012 — 400 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 400 mg/kg.
  • 4.2.3 canned or bottled fruit and vegetables — 1,000 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 1000 mg/kg. only fruit energy-reduced or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 4.2.4.1 fruit and vegetable preparations excluding compote — 250 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/kg. only energy-reduced. Note 51: Maximum usable levels are expressed in free acid.
  • 4.2.5 jam jellies and marmalades and similar products — 1,000 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 1000 mg/kg. only energy-reduced jams, jellies and marmalades. Note 51: Maximum usable levels are expressed in free acid.
  • 4.2.5.1 Extra jam and extra jelly as defined by Directive 2001/113/EC — 1,000 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 1000 mg/kg. only energy-reduced jams, jellies and marmalades.
  • 4.2.5.2 Jam, jellies and marmalades and sweetened chestnut puree as defined by Directive 2001/113/EC — 1,000 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 1000 mg/kg. only energy-reduced jams, jellies and marmalades.
  • 4.2.5.3 other similar fruit or vegetable spreads — 500 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 500 mg/kg. only energy-reduced fruit or vegetable spreads and dried-fruit-based sandwich spreads, energy-reduced or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 5.2 Other confectionery including breath freshening micro-sweets — 500 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 500 mg/kg. only cocoa, milk, dried fruit or fat based sandwich spreads, energy-reduced or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 5.4 Decorations, coatings and fillings, except fruit-based fillings covered by category 4.2.4 — 250 mg/kgAuthorised under E 952, Cyclamic acid and its Na and Ca salts. ML = 250 mg/kg. only flavoured cream spray cans, energy-reduced or with no added sugar. Note 51: Maximum usable levels are expressed in free acid.
  • 7.2 Fine bakery waresAuthorised under E 952, Cyclamic acid and its Na and Ca salts.
Regulation (EC) No 1333/2008, Annex IIand 21 further provisionsretrieved 2026-10-18
Great BritainFood Standards Agency / Food Standards ScotlandPermitted, with conditions

19 food categories

highest permitted level 1,000 mg/kg or mg/l

Show every food category
  • 1.4 Flavoured fermented milk products including heat-treated products — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only energy-reduced products or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 11.4.1 Table-top sweeteners in liquid form — quantum satisAuthorised under E 952, Cyclamates. quantum satis.
  • 11.4.2 Table-top sweeteners in powder form — quantum satisAuthorised under E 952, Cyclamates. quantum satis.
  • 11.4.3 Table-top sweeteners in tablets — quantum satisAuthorised under E 952, Cyclamates. quantum satis.
  • 13.2 Dietary foods for special medical purposes defined in Directive 1999/21/EC (excluding products from food category 13.1.5) — 400 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 400. Note (51): Maximum usable levels are expressed in free acid.
  • 13.3 Dietary foods for weight control diets intended to replace total daily food intake or an individual meal (the whole or part of the total daily diet) — 400 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 400. Note (51): Maximum usable levels are expressed in free acid.
  • 14.1.3 Fruit nectars as defined by Directive 2001/112/EC and vegetable nectars and similar products — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 14.1.4 Flavoured drinks — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 14.2.8 Other alcoholic drinks including mixtures of alcoholic drinks with non-alcoholic drinks and spirits with less than 15 % of alcohol — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only mixtures of alcoholic drinks with non-alcoholic drinks. Note (51): Maximum usable levels are expressed in free acid.
  • 16 Desserts excluding products covered in categories 1, 3 and 4 — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 17.1 Food supplements supplied in a solid form, excluding food supplements for infants and young children — several limitsAuthorised under E 952, Cyclamates. (1) ML 500: no further restriction; (2) ML 1250: only food supplements in chewable form. Note (51): Maximum usable levels are expressed in free acid.
  • 17.2 Food supplements supplied in a liquid form, excluding food supplements for infants and young children — several limitsAuthorised under E 952, Cyclamates. (1) ML 400: no further restriction; (2) ML 1250: only food supplements in syrup form. Note (51): Maximum usable levels are expressed in free acid.
  • 4.2.3 Canned or bottled fruit and vegetables — 1,000 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 1000. only fruit energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 4.2.4.1 Fruit and vegetable preparations excluding compote — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only energy-reduced. Note (51): Maximum usable levels are expressed in free acid.
  • 4.2.5.1 Extra jam and extra jelly as defined by Directive 2001/113/EC — 1,000 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 1000. only energy-reduced jams jellies and marmalades.
  • 4.2.5.2 Jam, jellies and marmalades and sweetened chestnut puree as defined by Directive 2001/113/EC — 1,000 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 1000. only energy-reduced jams, jellies and marmalades. Note (51): Maximum usable levels are expressed in free acid.
  • 4.2.5.3 Other similar fruit or vegetable spreads — 500 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 500. only energy-reduced fruit or vegetable spreads and dried-fruit-based sandwich spreads, energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 5.2 Other confectionery including breath refreshening microsweets — 500 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 500. only cocoa, milk, dried fruit or fat-based sandwich spreads, energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
  • 5.4 Decorations, coatings and fillings, except fruit based fillings covered by category 4.2.4 — 250 mg/kg or mg/lAuthorised under E 952, Cyclamates. ML = 250. only flavoured cream spray cans energy-reduced or with no added sugar. Note (51): Maximum usable levels are expressed in free acid.
Assimilated Regulation (EC) No 1333/2008, Annex II (as at 28 June 2024), under E 952and 18 further provisionsretrieved 2026-10-18
JapanConsumer Affairs AgencyNo listing matchedThis site imports only Japan’s list of designated additives (Appended Table 1 to the Regulations for Enforcement of the Food Sanitation Act), matched by English name. Existing additives, natural flavouring agents and ordinary foods used as additives are permitted outside that list and are not imported, so an empty row does not show that Japan does not permit the substance.
South KoreaMinistry of Food and Drug SafetyNo listing matchedThis site imports Part III of South Korea’s Standards and Specifications for Food Additives, matched by CAS number, then INS number, then exact name. Mixed preparations and sanitisers are not imported, and an entry whose identifiers disagreed with a page’s is held for review, so an empty row does not show that South Korea does not permit the substance.
United StatesFood and Drug AdministrationNot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.
Codex AlimentariusCodex Alimentarius Commission / JECFAPermitted, with conditions

34 food categories

highest permitted level 3,000 mg/kg

Show every food category and its notes
  • 01.1.4 Flavoured Fluid Milk Drinks — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note 639 Except for use in products conforming to the Standard for Fermented Milks (CXS243-2003): for use in milk- and milk derivative-based products energy reduced or with no added sugar.
  • 01.7 Dairy-based desserts (e.g. pudding, fruit or flavoured yoghurt) — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note 639 Except for use in products conforming to the Standard for Fermented Milks (CXS243-2003): for use in milk- and milk derivative-based products energy reduced or with no added sugar.
  • 02.4 Fat-based desserts excluding dairy-based dessert products of food category 01.7 — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 03.0 Edible ices, including sherbet and sorbet — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 04.1.2.4 Canned or bottled (pasteurized) fruit — 1,000 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS319 Excluding products conforming to the Standard for Certain Canned Fruits (CODEX STAN 319-2015).
  • 04.1.2.5 — 1,000 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 04.1.2.6 Fruit-based spreads (e.g. chutney) excluding products of food category — 2,000 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS160 Excluding products conforming to the Standard for Mango Chutney (CODEX STAN 160-1987).
  • 04.1.2.8 Fruit preparations, including pulp, purees, fruit toppings and coconut milk — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS314R Excluding products conforming to the Standard for Date Paste (CODEX STAN 314R-2013).
  • 04.1.2.9 Fruit-based desserts, incl. fruit-flavoured water-based desserts — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 04.2.2.6 Vegetable (including mushrooms and fungi, roots and tubers, pulses and legumes, and aloe vera), seaweed, and nut and seed pulps and preparations (e.g. vegetable desserts and sauces, candied vegetables) other than food category 04.2.2.5 — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS57 Excluding products conforming to the Standard for Processed Tomato Concentrates (CODEX STAN 57-1981).
    • Note XS259R Excluding products conforming to the Codex Regional Standard for Tehena (CODEX STAN 259R-2007).
    • Note XS308R Excluding products conforming to the Regional Standard for Harissa (Red Hot Pepper Paste) (CXS 308R-2011).
  • 05.1.2 Cocoa mixes (syrups) — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 127 On the served to the consumer basis.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 05.1.3 Cocoa-based spreads, incl. fillings — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS86 Excluding products conforming to the Standard for Cocoa Butter (CODEX STAN 86-1981).
  • 05.1.4 Cocoa and chocolate products — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 05.1.5 Imitation chocolate, chocolate substitute products — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 05.2 Confectionery including hard and soft candy, nougats, etc. other than food categories 05.1, 05.3, and 05.4 — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 156 Except for use in microsweets and breath freshening mints at 2 500 mg/kg.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note XS309R Excluding products conforming to the Codex Regional Standard for Halawa Tehenia (CODEX STAN 309R-211).
  • 05.3 Chewing gum — 3,000 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 05.4 Decorations (e.g. for fine bakery wares), toppings (non-fruit), and sweet sauces — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 06.5 Cereal and starch based desserts (e.g. rice pudding, tapioca pudding) — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 07.2 Fine bakery wares (sweet, salty, savoury) and mixes — 1,600 mg/kg
    • Note 17 As cyclamic acid.
    • Note 165 For use in products for special nutritional use only.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 10.4 Egg-based desserts (e.g. custard) — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 11.4 Other sugars and syrups (e.g. xylose, maple syrup, sugar toppings) — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 159 For use in pancake syrup and maple syrup only.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 11.6 Table-top sweeteners, including those containing high-intensity sweeteners — GMP
    • Note 17 As cyclamic acid.
  • 12.6.1 Emulsified sauces and dips (e.g. mayonnaise, salad dressing, onion dips) — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 12.7 Salads (e.g. macaroni salad, potato salad) and sandwich spreads excluding cocoa-and nut-based spreads of food categories 04.2.2.5 and 05.1.3 — 500 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 13.3 Dietetic foods intended for special medical purposes (excluding products of food category 13.1) — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
    • Note 566 Excluding products conforming to the Guidelines for Ready to Use Therapeutic Foods (CXG 95-2022).
  • 13.4 Dietetic formulae for slimming purposes and weight reduction — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 13.5 Dietetic foods (e.g. supplementary foods for dietary use) excluding products of food categories — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 13.6 Food supplements — 1,250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.1.3.1 Fruit nectar — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 122 Subject to national legislation of the importing country.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.1.3.2 Vegetable nectar — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.1.3.3 Concentrates for fruit nectar — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 122 Subject to national legislation of the importing country.
    • Note 127 On the served to the consumer basis.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.1.3.4 Concentrates for vegetable nectar — 400 mg/kg
    • Note 17 As cyclamic acid.
    • Note 127 On the served to the consumer basis.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.1.4 Water-based flavoured drinks, including "sport," “energy,” or "electrolyte" drinks and particulated drinks — 350 mg/kg
    • Note 17 As cyclamic acid.
    • Note 127 On the served to the consumer basis.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
  • 14.2.7 Aromatized alcoholic beverages (e.g. beer, wine and spirituous cooler-type beverages, low-alcoholic refreshers) — 250 mg/kg
    • Note 17 As cyclamic acid.
    • Note 477 Some Codex Members allow use of additives with sweetener function in all foods within this Food Category while others limit additives with sweetener function to those foods with significant energy reduction or no added sugars.
CXS 192-1995 Table One, INS 952(i)and 33 further provisionsretrieved 2026-09-07

How much is permitted

A listing usually limits the quantity as well as the food. Only one of the forms that takes is a figure: quantum satis and good manufacturing practice permit the amount the technological effect requires and no more, which is a limit rather than the absence of one. Figures below are the range across every food category this page is listed in, and categories differ between regulators — see how much is permitted.

Australia and New Zealand350 mg/kg – 20,000 mg/kg8 numeric limit, 1 GMP
European Union250 mg/kg – 1,000 mg/kg18 numeric limit, 3 quantum satis, 1 no quantity stated
Great Britain250 mg/kg – 1,000 mg/kg14 numeric limit, 2 several limits, 3 quantum satis
Codex Alimentarius250 mg/kg – 3,000 mg/kg33 numeric limit, 1 GMP

What a label must say

Words a food containing Cyclamic acid is obliged to carry, quoted from the instrument that imposes them. A required statement is a fact about the regulation, not a finding about the substance — every rule below applies where the additive is authorised.

Every rule collected at what a label must say.

What it is made from

Made by sulfonating cyclohexylamine, a petroleum-derived intermediate.

  • Vegan
  • Vegetarian

Compare other additives on the dietary indexes.

InChIKey
HCAJEUSONLESMK-UHFFFAOYSA-N
PubChem
CID 7533

How JECFA defines it

The international specification for identity and purity, prepared by the Joint FAO/WHO Expert Committee on Food Additives and published by FAO. It is a different document from any above, written by a different body and revised on its own cycle; it is advisory, and a country adopts it or does not.

INS 952 Cyclohexylsulfamic Acid

Synonyms: Cyclamic acid, INS No. 952 Cyclamic acid

Assay, identification and purity criteria

Description and assay

Specification history
Prepared at the 46th JECFA (1996), published in FNP 52 Add 4 (1996) superseding specifications prepared at the 24th JECFA (1980), published in FNP 17 (1980) and in FNP 52 (1992). Metals and arsenic specifications revised at the 57th JECFA (2001). A group ADI of 0-11 mg/kg bw for cyclamic acid and its calcium and sodium salts (as cyclamic acid) was established at the 26th JECFA (1982)
Chemical names
Cyclohexylsulfamic acid, cyclohexanesulfamic acid
C.A.S. number
100-88-9
Chemical formula
C 6 H 13 NO 3 S
Formula weight
179.24
Assay
Not less than 98.0% and not more than 102.0% on the dried basis
DESCRIPTION
Practically colourless, white crystalline powder
FUNCTIONAL USES
Sweetener
METHOD OF ASSAY
Transfer about 350 mg, accurately weighed, into a 250 ml flask. Dissolve the sample in 50 ml of water, add phenolphthalein TS, and titrate with 0.1N sodium hydroxide. Each ml of 0.1N sodium hydroxide is equivalent to 17.82 mg of C 6 H 13 NO 3 S.

Identification

Solubility (Vol. 4)
Soluble in water, and in ethanol
Precipitate formation
Acidify a 2% solution with hydrochloric acid, add 1 ml of barium chloride TS and filter if any haze or precipitate forms. To the clear solution add 1 ml of a 10% solution of sodium nitrite. A white precipitate forms.

Purity criteria

Loss on drying (Vol. 4)
Not more than 1.0% (105º, 1 h)
Cyclohexylamine (Vol. 4)
Not more than 10 mg/kg Transfer 25 g of the sample into a 100 ml volumetric flask containing 20 ml of water, mix, and add 60 ml of sodium hydroxide TS. Add sodium hydroxide TS, if necessary, to make the solution alkaline to litmus. Dilute to volume with water, and mix. Use this solution as the test preparation.
Dicyclohexylamine (Vol. 4)
Not more than 1 mg/kg
Lead (Vol. 4)
Not more than 1 mg/kg Determine using an atomic absorption technique appropriate to the specified level. The selection of sample size and method of sample preparation may be based on the principles of the method described in Volume 4, “Instrumental Methods.”

FAO JECFA Monograph 1 (2006)

Every name it appears under

137 recorded names. A label may use any of them.

E number

  • E952

INS number

  • 952(i)

CAS registry number

  • 100-88-9

As it appears in regulation

  • Cyclamic acid and its Na and Ca salts

Other names

  • (sulfonatoazaniumyl)cyclohexane
  • 4-12-00-00102 (Beilstein Handbook Reference)
  • aminocyclohexylsulfonic acid
  • BRN 2208885
  • CALCIUMLEVULINATE
  • CAS-100-88-9
  • CYCLAMATE
  • CYCLAMATES
  • Cyclamic acid
  • Cyclamic acid (USAN)
  • Cyclamic acid, BAN, USAN
  • Cyclamic acid, United States Pharmacopeia (USP) Reference Standard
  • cyclamic-acid
  • Cyclamsaeure
  • Cyclohexanesulfamic acid
  • Cyclohexanesulphamic acid
  • CyclohexansulfamidsA currencyure
  • cyclohexyl-sulfamic acid
  • Cyclohexylamide sulfate
  • Cyclohexylamide sulphate
  • Cyclohexylamidosulfuric acid
  • Cyclohexylamidosulphuric acid
  • Cyclohexylamine sulfamic acid
  • Cyclohexylamine-N-sulfonic acid
  • Cyclohexylaminesulfonic acid
  • Cyclohexylaminesulphonic acid
  • Cyclohexylsulfamic acid
  • Cyclohexylsulfamic acid;Cyclamate
  • Cyclohexylsulphamic acid
  • Cylamic acid
  • Hexamic acid
  • Hexamic acid (TN)
  • HSDB 275
  • INS NO.952(I)
  • INS-952(I)
  • N-(Cyclohexyl)aminosulfonsaeure
  • N-?Cyclohexylsulfamic Acid
  • N-?Cyclohexylsulfamic Acid(Cyclamic Acid)
  • N-cyclo-hexylsulphamic acid
  • n-cyclohexyl-sulfamic acid
  • N-Cyclohexyl-Sulfuric acid monoamide
  • N-Cyclohexylsulfamic acid
  • N-Cyclohexylsulfamic acid, >=98.0% (T)
  • N-Cyclohexylsulfamsaeure
  • N-Cyclohexylsulphamic acid
  • Sucaryl
  • Sucaryl acid
  • Sucaryl acidxine
  • Sulfamic acid, cyclohexyl-
  • Sulfamic acid, N-cyclohexyl-
  • Sulfuric acid monoamide, N-cyclohexyl-
  • Zyklamat

Hazard reference values

Values set by assessing bodies. A body that has not set a value is not listed here.
TypeValuePopulationAssessed byOpinion
ADI11 mg/kg bw/day—JECFA2009

Evidence and how bodies read it

Studies, and the differing conclusions regulators drew from them, are curated rather than machine-read, and none has been written for this substance yet.

Common questions

Assembled from what is above, in the words the questions are usually asked in. Each answer is the same statement the relevant section makes, with the same citations behind it.

What is INS 952(i)?
INS 952(i) is Cyclamic acid. Cyclamic acid is the parent acid of the cyclamate sweeteners, about thirty times as sweet as sugar. In food it is normally used as the sodium or calcium salt.
What is Cyclamic acid used for in food?
It is listed as a sweetener — the role Codex, the EU and the US assign it. This page shows every function each regulator records, with the citation for each.
Where is Cyclamic acid permitted?
Of the seven regulators this site reads, Australia and New Zealand, the EU, Great Britain and the Codex standard permit it. Each permission is for named foods at named levels, not a blanket one; the table on this page gives them with citations.
Is Cyclamic acid vegan?
Yes. Cyclamic acid is not derived from animals, and is suitable for vegetarians. This page says what it is made from and how.

Sources for this page

  • anz retrieved 2026-10-17
  • eu retrieved 2026-10-18
  • gb retrieved 2026-10-18
  • gsfa retrieved 2026-09-07
  • jecfaspecs retrieved 2026-09-23

Full licence terms and publisher details on Sources. How this page is built and updated: Method.

Machine-readable: a JSON record of this additive is given on request —how to ask for access.

Follow changes to Cyclamic acid:Atom feed — regulatory events, and any change the weekly refresh detects in its provisions.