Molekula
L-Alanine
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-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 at 98.5 - 101.5% purity in 100 g and 1 kg packs, from £37.08 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and a safety data sheet is available. Larger quantities, up to multi-tonne, are quoted on request.
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.
-
100 g — £30.90 per pack ex VAT · £37.08 inc. VAT
-
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.
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-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 conforming to USP specifications, with an assay of 98.5–101.5%.
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).
Where can I buy L-Alanine?
Directly from Molekula, which lists L-Alanine in 100 g and 1 kg packs from £37.08 inc. VAT, with a certificate of analysis for every batch. Larger quantities are quoted on request. Molekula's offices: United Kingdom, France, Spain, Germany, Italy, United States and China.
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.