Monopotassium glutamate
19473-49-5 · 6382-01-0 · B5ZC7FHO6O · C5H10KNO5 · CCRIS 4213 · Glutamate, Potassium · Glutamic acid, monopotassium salt, monohydrate · Glutamic acid, monopotassium salt, monohydrate, L- · GQ82EXX32T · INS NO.622 · INS-622 · L-2-Aminopentanedioic acid potassium · L-Glutamic acid monopotassium monohydrate · L-Glutamic acid monopotassium salt monohydrate, puriss. p.a., >=99.0% · L-Glutamic acid potassium salt monohydrate · L-Glutamic acid potassium salt monohydrate, >=99% (HPLC), powder · L-Glutamic acid potassium salt monohydrate, BioReagent, suitable for insect cell culture, >=99% (HPLC) · L-Glutamic acid, monopotassium salt · L-Glutamic acid, monopotassium salt, monohydrate · L-GLUTAMIC ACID, POTASSIUM SALT, HYDRATE (1:1:1) · MONOPOTASSIUM GLUTAMATE · Monopotassium glutamate monohydrate · Monopotassium L-glutamate · Monopotassium L-glutamate monohydrate · Potassium 5-oxido-5-oxo-L-norvaline--water (1/1/1) · Potassium 5-oxido-5-oxonorvaline--water (1/1/1) · Potassium glutamate · Potassium glutaminate · potassium;(4S)-4-amino-5-hydroxy-5-oxo-pentanoate;hydrate · potassium;(4S)-4-amino-5-hydroxy-5-oxopentanoate;hydrate · 622 · potassium (2S)-2-amino-4-carboxybutanoate · Monopotassium glutamateINS 622CAS 19473-49-5
Used as a flavour enhancer.
Monopotassium glutamate is a flavour enhancer used in reduced-sodium foods, giving the same umami effect as MSG without the sodium.
Where it is and isn’t permitted
| Jurisdiction | Status | Scope and limits | Citation |
|---|---|---|---|
| United States | Permitted | 21 CFR 182.1516retrieved 2026-09-07 | |
| Codex Alimentarius | Permitted, with conditions | 2 food categories no numerical limit (good manufacturing practice) Show every food category
| CXS 192-1995 Table Three, INS 622and 2 further provisionsretrieved 2026-09-07 |
What it is made from
Made by neutralising fermentation-derived glutamic acid with potassium.
- Vegan
- Vegetarian
- CAS registry number
- 19473-49-5
- InChIKey
- XIBUKSQTWSKJMQ-QTNFYWBSSA-M
- PubChem
- CID 23695977
Every name it appears under
33 recorded names. A label may use any of them.
INS number
- 622
CAS registry number
- 19473-49-5
- 6382-01-0
As it appears in regulation
- Monopotassium glutamate
Other names
- B5ZC7FHO6O
- C5H10KNO5
- CCRIS 4213
- Glutamate, Potassium
- Glutamic acid, monopotassium salt, monohydrate
- Glutamic acid, monopotassium salt, monohydrate, L-
- GQ82EXX32T
- INS NO.622
- INS-622
- L-2-Aminopentanedioic acid potassium
- L-Glutamic acid monopotassium monohydrate
- L-Glutamic acid monopotassium salt monohydrate, puriss. p.a., >=99.0%
- L-Glutamic acid potassium salt monohydrate
- L-Glutamic acid potassium salt monohydrate, >=99% (HPLC), powder
- L-Glutamic acid potassium salt monohydrate, BioReagent, suitable for insect cell culture, >=99% (HPLC)
- L-Glutamic acid, monopotassium salt
- L-Glutamic acid, monopotassium salt, monohydrate
- L-GLUTAMIC ACID, POTASSIUM SALT, HYDRATE (1:1:1)
- MONOPOTASSIUM GLUTAMATE
- Monopotassium glutamate monohydrate
- Monopotassium L-glutamate
- Monopotassium L-glutamate monohydrate
- Potassium 5-oxido-5-oxo-L-norvaline--water (1/1/1)
- Potassium 5-oxido-5-oxonorvaline--water (1/1/1)
- Potassium glutamate
- Potassium glutaminate
- potassium;(4S)-4-amino-5-hydroxy-5-oxo-pentanoate;hydrate
- potassium;(4S)-4-amino-5-hydroxy-5-oxopentanoate;hydrate
Systematic names
- potassium (2S)-2-amino-4-carboxybutanoate
Hazard reference values
| Type | Value | Population | Assessed by | Opinion |
|---|---|---|---|---|
| ADI | 30 mg/kg bw/day | consumers | EFSA | not identified in the dataset |
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
- 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/monopotassium-glutamate.json