Starch sodium octenyl succinate

E number E1450INS 1450CAS 66829-29-6

Used as an emulsifier — Codex also lists it as carrier, stabilizer, thickener.

This starch carries an oil-loving group, which turns a thickener into an emulsifier. It is what allows cloudy soft drinks and powdered flavour capsules to hold oil in water without a conventional emulsifier.

Where it is and isn’t permitted

Status of Starch sodium octenyl succinate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
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

12 food categories

highest permitted level 50,000 mg/kg

Show every food category
  • 01.2.1.1 Fermented milks (plain), not heat-treated after fermentation — GMP
  • 01.2.1.2 Fermented milks (plain), heat-treated after fermentation — GMP
  • 01.2.2 Renneted milk (plain) — GMP
  • 01.4.1 Pasteurized cream (plain) — GMP
  • 01.4.2 Sterilized and UHT creams, whipping and whipped creams, and reduced fat creams (plain) — GMP
  • 10.2.1 Liquid egg products — GMP
  • 10.2.2 Frozen egg products — GMP
  • 13.1.1 Infant formulae — 20,000 mg/kg
  • 13.1.2 Follow-up formulae — 100 mg/kg
  • 13.1.3 Formulae for special medical purposes for infants — 20,000 mg/kg
  • 13.2 Complementary foods for infants and young children — 50,000 mg/kg
  • 14.1.5 Coffee, coffee substitutes, tea, herbal infusions, and other hot cereal and grain beverages, excluding cocoa — GMP
CXS 192-1995 Table Three, INS 1450and 12 further provisionsretrieved 2026-09-07

What it is made from

Made by reacting starch with octenyl succinic anhydride, which attaches a hydrocarbon tail to the otherwise water-loving starch.

  • Vegan
  • Vegetarian
CAS registry number
66829-29-6

Every name it appears under

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

E number

  • E1450

INS number

  • 1450

CAS registry number

  • 66829-29-6

Other names

  • E 1450
  • SSOS
  • STARCH SODIUM OCTENYL SUCCINATE

Hazard reference values

No reference value for this substance in the sources we hold.

Evidence and how bodies read it

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

Sources for this page

  • gsfa retrieved 2026-09-07

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

Machine-readable:/api/v1/additives/starch-sodium-octenyl-succinate.json