Molekula
L-Lysine
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-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
On backorder — expected to ship by 26 November 2026
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.
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
- (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.