Calcium lactobionate

Calcium lactobionate is a firming agent, used in dry pudding mixes to keep fruit pieces from going soft.

Where it is and isn’t permitted

Status of Calcium lactobionate by jurisdiction. Every jurisdiction this site covers is listed, including those where the substance does not appear.
JurisdictionStatusScope and limitsCitation
United StatesFood and Drug AdministrationPermitted, with conditions21 CFR 172.720retrieved 2026-09-07
Codex AlimentariusCodex Alimentarius Commission / JECFANot listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited.

What it is made from

Made by oxidising lactose to lactobionic acid and neutralising with calcium. The starting lactose is from milk.

  • Not vegan
  • Vegetarian
  • May raise a kosher question
InChIKey
FALNADDKNDADFQ-WNSOHMSISA-L
PubChem
CID 11954336

Every name it appears under

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

CAS registry number

  • 110638-68-1

As it appears in regulation

  • Calcium lactobionate

Other names

  • 4-O-|?-D-Galactopyranosyl-D-gluconic acid monohydrate hemicalcium salt
  • 7D8YVA497F
  • Calcium 4-O-beta-D-galactopyranosyl-D-gluconate--water (1/2/2)
  • Calcium 4-O-hexopyranosylhexonate--water (1/2/2)
  • Calcium lactobionate
  • CALCIUM LACTOBIONATE (1:2), DIHYDRATE.
  • CALCIUM LACTOBIONATE (MART.)
  • CALCIUM LACTOBIONATE (USP MONOGRAPH)
  • Calcium lactobionate (USP)
  • CALCIUM LACTOBIONATE (USP-RS)
  • Calcium lactobionate dihydrate
  • Calcium lactobionate monohydrate
  • Calciumlactobionatedihydrate
  • D-GLUCONIC ACID, 4-O-.BETA.-D-GALACTOPYRANOSYL-, CALCIUM SALT (2:1), DIHYDRATE
  • D-Gluconic acid, 4-O-beta-D-galactopyranosyl-, calcium salt (2:1), dihydrate
  • Lactobionic acid, calcium salt (2:1), dihydrate

Systematic names

  • calcium;(2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoate;dihydrate
  • Calcium;(2R,3R,4R,5R)-2,3,5,6-tetrahydroxy-4-[(2S,3R,4S,5R,6R)-3,4,5-trihydroxy-6-(hydroxymethyl)oxan-2-yl]oxyhexanoate;hydrate

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

  • ecfr 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/calcium-lactobionate.json