Molekula
L-Alanine
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-Alanine is a non-essential amino acid used in biochemical research, cell culture media, and peptide synthesis. It plays a role in metabolic processes and protein structure. Available in powder form with a purity of ≥98%, it has a molecular formula of C3H7NO2, a molecular weight of 89.09 g/mol, and is stable at ambient temperatures. CAS number: 56-41-7. Molekula supplies L-Alanine 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 — £30.90 per pack ex VAT · £37.08 inc. VAT
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1 kg — £93.50 per pack ex VAT · £112.20 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 crystalline powder |
| Specific rotation | +13.7 to +15.1 |
| Heavy metals | ≤ 0.0015% |
| Identification | Conforms to reference |
| pH | 5.5 - 7.0 |
| Loss on Drying | ≤ 0.2% |
| Specification | Confroms to USP specifications |
| Chloride (Cl-) | ≤ 0.05% |
| Assay | 98.5 - 101.5% |
| Residue on Ignition | ≤ 0.15% |
| Particle Size | 200μm |
| Iron (Fe) | ≤ 0.003% |
| Sulphates (SO4)(2-) | ≤ 0.03% |
| Level of persistent organic pollutants | No pollutants |
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 |
| Odour | Odorless |
| Melting Point | 297 °C (decomposes) |
| Boiling Point | 250 °C (sublimes) |
| Density | 1.432 g/cm³ at 22 °C |
| Water Solubility | 164 g/L at 25 °C |
| Solubility (other solvents) | Slightly soluble in ethanol, pyridine; insoluble in ether, acetone |
| Vapour Pressure | 0.00000011 mmHg |
| pKa | pKa = 2.34 (at 25 °C) |
| log P (octanol/water) | -2.85 |
Source: PubChem CID 5950 (HSDB, Haz-Map, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 22302418 |
| CAS Number | 56-41-7 |
| IUPAC Name | (2S)-2-aminopropanoic acid |
| EC Number | 200-273-8 |
| Molecular Formula | C3H7NO2 |
| Molecular Weight | 89.09 |
| Exact Mass | 89.0477 |
| SMILES | C[C@@H](C(=O)O)N |
| InChIKey | QNAYBMKLOCPYGJ-REOHCLBHSA-N |
| InChI | InChI=1S/C3H7NO2/c1-2(4)3(5)6/h2H,4H2,1H3,(H,5,6)/t2-/m0/s1 |
| PubChem CID | 5950 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29224949 |
| Tariff Code | 2922498590 |
Safety & GHS
Precautionary statements
- P280 Wear protective gloves/protective clothing/eye protection/face protection
Documents
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-Aminopropanoic acid
- (S)-2-Aminopropanoic acid
- (S)-Alanine
- 2-Aminopropionic acid
- alanine
- alpha-Aminopropionic acid
- L-2-Aminopropanoic acid
- L-2-Aminopropionic acid
- L-alpha-alanine
- L-alpha-Aminopropionic acid
Frequently asked questions
What is L-Alanine used for?
L-Alanine is commonly used in biochemical research, cell culture media, and as a building block in peptide synthesis.
What is the chemical formula and molecular weight of L-Alanine?
The formula is C3H7NO2 and the molecular weight is 89.09 g/mol.
How should L-Alanine be stored?
Store at ambient temperature, protected from moisture and light.
What grade of L-Alanine is available?
Molekula supplies L-Alanine in reagent grade.
Can Molekula supply L-Alanine in bulk?
Yes, Molekula can supply L-Alanine in bulk quantities upon request.
What documentation comes with an order of L-Alanine?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS).
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.