Molekula
L-Glutamine - tested to USP specifications
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
L-Glutamine is a non-essential amino acid and key nutrient for cellular metabolism, widely used in clinical nutrition, sports supplements, and biopharmaceutical manufacturing for tissue repair, immune support, and metabolic processes. It meets USP monograph standards for purity and consistency in pharmaceutical and nutritional applications. CAS 56-85-9, molecular formula H2NCOCH2CH2CH(NH2)CO2H, molecular weight 146.14 g/mol, stable at ambient storage. Molekula supplies L-Glutamine 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
In stock — same-day dispatch
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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100 g — £81.00 per pack ex VAT · £97.20 inc. VAT
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 crystals or crystalline powder |
| Grade | conforms to USP Specification |
| Specific rotation | +6.3 to +7.3°C |
| Loss on Drying | ≤ 0.3% |
| Chloride (Cl-) | ≤ 0.05% |
| Assay | 99.5 to 101.5% |
| Residue on Ignition | ≤ 0.3% |
| Heavy Metals (Pb) | ≤ 15ppm |
| Solubility in water | Forms a clear, colourless solution |
| Iron (Fe) | ≤ 30ppm |
| Identification (IR) | Conforms to structure |
| Sulphates (SO4)(2-) | ≤ 0.03% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystalline powder |
| Melting Point | 184-185 °C (decomposes) |
| Density | 1.364 g/cm³ |
| Solubility (other solvents) | Soluble in water and ether |
| Vapour Pressure | 0.00000002 mmHg |
| pKa | pKa = 2.17 |
| log P (octanol/water) | -3.15 |
Source: PubChem CID 5961 (HSDB, Joint FAO/WHO Expert Committee on Food Additives (JECFA), Haz-Map, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 90037159 |
| CAS Number | 56-85-9 |
| IUPAC Name | (2S)-2,5-diamino-5-oxopentanoic acid |
| EC Number | 200-292-1 |
| Molecular Formula | H2NCOCH2CH2CH(NH2)CO2H |
| Molecular Weight | 146.14 |
| Exact Mass | 146.0691 |
| SMILES | C(CC(=O)N)[C@@H](C(=O)O)N |
| InChIKey | ZDXPYRJPNDTMRX-VKHMYHEASA-N |
| InChI | InChI=1S/C5H10N2O3/c6-3(5(9)10)1-2-4(7)8/h3H,1-2,6H2,(H2,7,8)(H,9,10)/t3-/m0/s1 |
| PubChem CID | 5961 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29241911 |
| Tariff Code | 2924190090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, English (US), French, German, Italian, Russian, 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.
Quality certificates
Molekula Group is certified to ISO 9001:2015 (quality) and ISO 14001:2015 (environmental management), audited by a UKAS-accredited body. Both certificates are valid to 17 May 2028.
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is L-Glutamine commonly used for?
L-Glutamine is widely used as a nutritional supplement to support muscle recovery, gut health, and immune function, as well as in clinical and sports nutrition applications.
What is the chemical formula and molecular weight of L-Glutamine?
The chemical formula is **H₂NCOCH₂CH₂CH(NH₂)CO₂H**, and the molecular weight is **146.14 g/mol**.
How should L-Glutamine be stored?
Store L-Glutamine at **ambient temperature** in a dry, well-ventilated area, away from direct sunlight and moisture.
What grade of L-Glutamine does Molekula supply?
Molekula supplies **USP-grade L-Glutamine**, meeting pharmaceutical and nutritional industry standards.
Can Molekula supply L-Glutamine in bulk quantities?
Yes, Molekula can supply L-Glutamine in **bulk quantities** (e.g., drums, totes, or custom packaging) for industrial, pharmaceutical, or nutritional applications.
What documentation comes with an order of L-Glutamine?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **USP compliance documentation** to verify quality and purity.
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.