Molekula
L-Histidine
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-Histidine is an essential amino acid crucial for protein synthesis, immune function, and neurotransmitter production, commonly used in pharmaceuticals, sports nutrition, and biochemical research. This crystalline powder has a CAS number of 71-00-1, molecular formula C6H9N3O2, and a molecular weight of 155.15 g/mol. It is stable at ambient storage conditions with no signal word for hazard classification. Molekula supplies L-Histidine 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.
Often bought together
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 — £70.40 per pack ex VAT · £84.48 inc. VAT
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1 kg — £231.50 per pack ex VAT · £277.80 inc. VAT
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5 kg — £887.40 per pack ex VAT · £1,064.88 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 | USP39 |
| Specific rotation | +12.6 ° to +14.0 ° |
| Identification | Infrared absorption |
| pH | 7.0 - 8.5 |
| Loss on Drying | ≤0.2% |
| Chloride (Cl-) | ≤0.05% |
| Assay | ≥98.5% |
| Related Substances | Not more than 0.5% of any individual impurity is found; Not more than 2.0% of total impurities is found |
| Residue on Ignition | ≤0.1% |
| Heavy Metals (Pb) | ≤15ppm |
| Iron (Fe) | ≤30ppm |
| 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 | Needles or plates |
| Melting Point | 287 °C (decomp) |
| Water Solubility | 45.6 g/L at 25 °C |
| Solubility (other solvents) | Insoluble in ethyl ether, acetone; slightly soluble in ethanol |
| Vapour Pressure | 0.00000001 mmHg |
| pKa | pKa = 2.76 (at 0 °C) |
| log P (octanol/water) | -3.32 |
Source: PubChem CID 6274 (HSDB, Haz-Map, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 16752688 |
| CAS Number | 71-00-1 |
| IUPAC Name | (2S)-2-amino-3-(1H-imidazol-5-yl)propanoic acid |
| EC Number | 200-745-3 |
| Molecular Formula | C6H9N3O2 |
| Molecular Weight | 155.15 |
| Exact Mass | 155.0695 |
| SMILES | C1=C(NC=N1)C[C@@H](C(=O)O)N |
| InChIKey | HNDVDQJCIGZPNO-YFKPBYRVSA-N |
| InChI | InChI=1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1 |
| PubChem CID | 6274 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29332990 |
| Tariff Code | 2933299090 |
Safety & GHS
Detailed safety information available in the SDS — see Documents below.
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.
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
- (2S)-2-amino-3-(1H-imidazol-4-yl)propanoic acid
- (S)-4-(2-Amino-2-carboxyethyl)imidazole
- FEMA No. 3694
- glyoxaline-5-alanine
- histidina
- histidine
- HISTIDINE, L-
- Istidina
- L-His
- L-Histidin
Frequently asked questions
What is L-Histidine commonly used for in industrial or research applications?
L-Histidine is primarily used as a nutrient in cell culture media, a precursor for pharmaceutical synthesis, and in dietary supplements for its role in protein metabolism and immune function.
What is the chemical formula and molecular weight of L-Histidine?
The chemical formula is **C6H9N3O2**, and the molecular weight is **155.15 g/mol**.
How should L-Histidine be stored?
Store L-Histidine at **ambient temperature** in a dry, well-ventilated area, away from moisture and strong oxidizing agents.
What grades of L-Histidine does Molekula supply?
Molekula supplies **pharmaceutical-grade (USP/EP/JP)** and **analytical-grade** L-Histidine, depending on application requirements.
Can Molekula supply L-Histidine in bulk quantities?
Yes, Molekula can supply L-Histidine in **bulk quantities** (e.g., 1 kg, 5 kg, 25 kg, or custom volumes) for industrial and research needs.
What documentation comes with an order of L-Histidine?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.