Potassium 5’-inosinate
POTASSIUM 5'-INOSINATE · Potassium 5’-inosinate · 632INS 632
Used as a flavour enhancer.
Potassium inosinate is a savoury flavour enhancer, the potassium salt of inosinic acid, used in reduced-sodium products.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| United States | Not listedDoes not appear on this jurisdiction’s permitted list. That is not the same as being prohibited. | ||
| Codex Alimentarius | Permitted, with conditions | 1 food category no numerical limit (good manufacturing practice) | CXS 192-1995 Table Three, INS 632and 1 further provisionretrieved 2026-09-07 |
What it is made from
Made by neutralising inosinic acid, produced by fermentation or from yeast RNA, with potassium.
- Vegan status depends on the source
- Vegetarian status depends on the source
- May raise a halal question
- May raise a kosher question
This is not an omission. What this additive is made from is not fixed — depending on the manufacturer it may be plant, animal or microbial in origin, nobody is required to say which, and the same product can change source between production runs. Ask the manufacturer if it matters to you; a label cannot answer it.
Every name it appears under
3 recorded names. A label may use any of them.
INS number
- 632
Other names
- POTASSIUM 5'-INOSINATE
- Potassium 5’-inosinate
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/potassium-5-inosinate.json