Molekula
L-Histidine
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-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
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 — $133.70 per pack
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1 kg — $439.90 per pack
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5 kg — $1,686.00 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 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.
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.