Molekula
L-Lysine
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-Lysine is an essential amino acid used in nutritional supplements, animal feed, and pharmaceutical applications. It plays a key role in protein synthesis and metabolic processes. Available with CAS number 56-87-1, molecular formula C6H14N2O2, and molecular weight 146.19 g/mol, it is stable at ambient storage conditions. Molekula supplies L-Lysine 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
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 — £42.00 per pack ex VAT · £50.40 inc. VAT
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500 g — £218.00 per pack ex VAT · £261.60 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 White crystalline Powder |
| Specific rotation | +25.5° - +27° |
| Heavy metals | ≤0.001% |
| pH | 9.0 - 10.5 |
| Loss on Drying | ≤5.0% |
| Chloride (Cl-) | ≤0.03% |
| Assay | 98.5 - 101.5% |
| Residue on Ignition | ≤0.3% |
| Other amino acids | ≤0.5% (HPLC); <0.5% (TLC) |
| Iron (Fe) | ≤0.001% |
| Arsenic (As) | ≤0.0001% |
| Ammonium (NH4+) | ≤0.02% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless crystals |
| Melting Point | 224 °C, decomposes |
| Water Solubility | 584 g/L at 27 °C |
| Vapour Pressure | 5.28 × 10⁹ mmHg at 25 °C (extrapolated) |
| pKa | pKa = 3.12 (at 0 °C) |
| log P (octanol/water) | -3.05 |
Source: PubChem CID 5962 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 35991574 |
| CAS Number | 56-87-1 |
| IUPAC Name | (2S)-2,6-diaminohexanoic acid |
| EC Number | 200-294-2 |
| Molecular Formula | H2N(CH2)4CH(NH2)CO2H |
| Molecular Weight | 146.19 |
| Exact Mass | 146.1055 |
| SMILES | C(CCN)C[C@@H](C(=O)O)N |
| InChIKey | KDXKERNSBIXSRK-YFKPBYRVSA-N |
| InChI | InChI=1S/C6H14N2O2/c7-4-2-1-3-5(8)6(9)10/h5H,1-4,7-8H2,(H,9,10)/t5-/m0/s1 |
| PubChem CID | 5962 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29224100 |
| Tariff Code | 2922410090 |
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, Portuguese, 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
- (S)-2,6-Diaminohexanoic acid
- (S)-Lysine
- alpha-Lysine
- Aminutrin
- h-Lys-oh
- L-lys
- Lisina
- lysine
- lysine acid
- Lysinum
Frequently asked questions
What is L-Lysine used for?
L-Lysine is primarily used as a nutritional supplement and amino acid additive in animal feed and food products to support protein synthesis and growth.
What is the chemical formula and molecular weight of L-Lysine?
The formula is H2N(CH2)4CH(NH2)CO2H with a molecular weight of 146.19 g/mol.
How should L-Lysine be stored?
Store at ambient temperature, protected from moisture and light, in a tightly sealed container.
What grade of L-Lysine does Molekula supply?
Molekula supplies L-Lysine in pharmaceutical and technical grades, suitable for research and industrial applications.
Can Molekula supply L-Lysine in bulk?
Yes, Molekula can supply L-Lysine in bulk quantities; please contact our sales team for pricing and availability.
What documentation comes with an order of L-Lysine?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation is available upon request.
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.