Molekula
Leupeptin
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
Leupeptin is a serine protease inhibitor used in biochemical research to prevent protein degradation. It is commonly employed in cell lysis and protein purification workflows. Available as a hydrochloride salt with a molecular formula of C20H38N6O4·HCl and a molecular weight of 463.01 g/mol. Stored at -15 to -20 °C. CAS number: 24125-16-4. Signal word: None.
Molekula supplies Leupeptin at ≥96.5 area-%(HPLC) purity in 25 mg packs, from £168.36 inc. VAT. It is in stock for same-day dispatch. Every batch ships with a certificate of analysis, and safety data sheets are available in 6 languages. Larger quantities, up to multi-tonne, are quoted on request.
Example image for illustration only. Other packaging and pack sizes are available.
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.
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25 mg — £140.30 per pack ex VAT · £168.36 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 to off-white powder |
| Identification | Conforms to reference |
| Purity | ≥96.5 area-%(HPLC) |
| Stability | Stable at - 20 Deg C for >24months, store dry and protect from light |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 89968247 |
| CAS Number | 24125-16-4 |
| IUPAC Name | (2S)-2-acetamido-N-[(2S)-1-[[(2S)-5-(diaminomethylideneamino)-1-oxopentan-2-yl]amino]-4-methyl-1-oxopentan-2-yl]-4-methylpentanamide;hydrochloride |
| Molecular Formula | C20H38N6O4·HCl |
| Molecular Weight | 463.01 |
| Exact Mass | 462.2721 |
| SMILES | CC(C)C[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCN=C(N)N)C=O)NC(=O)C.Cl |
| InChIKey | OQQYPQNFLLAILR-FRKSIBALSA-N |
| InChI | InChI=1S/C20H38N6O4.ClH/c1-12(2)9-16(24-14(5)28)19(30)26-17(10-13(3)4)18(29)25-15(11-27)7-6-8-23-20(21)22;/h11-13,15-17H,6-10H2,1-5H3,(H,24,28)(H,25,29)(H,26,30)(H4,21,22,23);1H/t15-,16-,17-;/m0./s1 |
| PubChem CID | 13209094 |
| REACH Code | Y113 |
| HTS Code | 29252990 |
| Tariff Code | 2925290090 |
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, 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
No alternate names recorded for this product.
Frequently asked questions
What is Leupeptin used for?
Leupeptin is a serine protease inhibitor commonly used in biochemical research to prevent protein degradation, particularly in cell lysis and protein purification workflows.
What is the chemical formula and molecular weight of Leupeptin?
The formula is C20H38N6O4·HCl with a molecular weight of 463.01 g/mol.
How should Leupeptin be stored?
Leupeptin should be stored at -15 to -20 °C to maintain stability and activity.
What grade of Leupeptin does Molekula supply?
Molekula supplies Leupeptin as a white to off-white powder with a purity of ≥96.5 area-% (HPLC).
Can Molekula supply Leupeptin in bulk quantities?
Yes, Molekula can supply Leupeptin in bulk quantities—please contact our sales team for custom order details.
What documentation comes with a Leupeptin order?
Each order includes a Certificate of Analysis (CoA) and safety data sheet (SDS); additional documentation is available upon request.
Where can I buy Leupeptin?
Directly from Molekula, which lists Leupeptin in 25 mg packs from £168.36 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.