Molekula
L-Glutamic acid monopotassium monohydrate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Glutamic acid monopotassium monohydrate is a potassium salt of glutamic acid used as a flavor enhancer and nutritional supplement. It is a white crystalline powder with a molecular formula of C5H8KNO4·H2O and a molecular weight of 203.23 g/mol. It is stable at ambient storage conditions and has no signal word. Molekula supplies L-Glutamic acid monopotassium monohydrate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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500 mg — $189.40 per pack
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Identification | Conforms to reference |
| pH | 6.5 ~ 8.0 |
| Chloride (Cl-) | ≤0.2% |
| Assay | 98.5 - 101.5% |
| Lead (Pb) | ≤10ppm |
| Specific Optical Rotation[α]D20 | +22.5 ~ +24.0° |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Solubility (other solvents) | Freely soluble in water; practically insoluble in ethanol or ether |
Source: PubChem CID 23695977 (EU Food Improvement Agents)
Identification
| Property | Value |
|---|---|
| SKU | 90028664 |
| CAS Number | 6382-01-0 |
| IUPAC Name | potassium;(4S)-4-amino-5-hydroxy-5-oxopentanoate;hydrate |
| Molecular Formula | C5H8KNO4·H2O |
| Molecular Weight | 203.23 |
| Exact Mass | 203.0196 |
| SMILES | C(CC(=O)[O-])[C@@H](C(=O)O)N.O.[K+] |
| InChIKey | XIBUKSQTWSKJMQ-QTNFYWBSSA-M |
| InChI | InChI=1S/C5H9NO4.K.H2O/c6-3(5(9)10)1-2-4(7)8;;/h3H,1-2,6H2,(H,7,8)(H,9,10);;1H2/q;+1;/p-1/t3-;;/m0../s1 |
| PubChem CID | 23695977 |
| REACH Code | Y113 |
| HTS Code | 29224250 |
| Tariff Code | 2922420090 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Glutamate, Potassium
- INS NO.622
- L-Glutamic acid, monopotassium salt
- L-Glutamic acid, monopotassium salt, monohydrate
- MONOPOTASSIUM GLUTAMATE
- Monopotassium glutamate monohydrate
- Monopotassium L-glutamate
- Monopotassium L-glutamate monohydrate
- Potassium glutamate
- Potassium glutaminate
Frequently asked questions
What is L-Glutamic acid monopotassium monohydrate used for?
It is primarily used as a flavor enhancer in food products and as a buffering agent in biochemical applications.
What is the chemical formula and molecular weight?
The formula is C5H8KNO4·H2O with a molecular weight of 203.23 g/mol.
How should L-Glutamic acid monopotassium monohydrate be stored?
It should be stored at ambient temperature, protected from moisture and heat.
What grade is available?
Available in food-grade and technical-grade forms, depending on application needs.
Can Molekula supply it in bulk?
Yes, Molekula can supply L-Glutamic acid monopotassium monohydrate in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.