Molekula
Azathioprine
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
Azathioprine (CAS 446-86-6) is an immunosuppressive drug used primarily to prevent organ transplant rejection and treat autoimmune diseases like rheumatoid arthritis and Crohn’s disease. It interferes with DNA synthesis in rapidly dividing cells, reducing immune system activity. This chemical has a molecular formula of C9H7N7O2S and a molecular weight of 277.26 g/mol, with a storage requirement of ambient conditions. Marked with a **Danger** signal word due to its toxicity and potential carcinogenicity, it requires careful handling. Molekula supplies Azathioprine 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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1 g — £46.20 per pack ex VAT · £55.44 inc. VAT
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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 | Light Yellow to Yellow-Green Powder |
| Purity | ≥ 98.0 % |
| Identification (IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 243.5 °C |
| Water Solubility | Insoluble in water |
| pKa | pKa = 7.87 (at 25 °C) |
| log P (octanol/water) | 0.10 |
Source: PubChem CID 2265 (DrugBank, HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 28663784 |
| CAS Number | 446-86-6 |
| IUPAC Name | 6-(3-methyl-5-nitroimidazol-4-yl)sulfanyl-7H-purine |
| EC Number | 207-175-4 |
| Molecular Formula | C9H7N7O2S |
| Molecular Weight | 277.26 |
| Exact Mass | 277.0382 |
| SMILES | CN1C=NC(=C1SC2=NC=NC3=C2NC=N3)[N+](=O)[O-] |
| InChIKey | LMEKQMALGUDUQG-UHFFFAOYSA-N |
| InChI | InChI=1S/C9H7N7O2S/c1-15-4-14-7(16(17)18)9(15)19-8-5-6(11-2-10-5)12-3-13-8/h2-4H,1H3,(H,10,11,12,13) |
| PubChem CID | 2265 |
| REACH Code | Y110 |
| HTS Code | 2933.59.90 |
| Tariff Code | 2933599590 |
Safety & GHS
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Health Hazard
GHS07
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Serious Health Hazard
GHS08
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H340 May cause genetic defects
- H350 May cause cancer
- H360 May damage fertility or the unborn child
- H372 Causes damage to organs through prolonged or repeated exposure
Precautionary statements
- P201 Obtain special instructions before use
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- 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.
Synonyms
- Azamun
- Azanin
- Azasan
- Azathioprin
- Azathioprinum
- Azatioprin
- Azothioprine
- Ccucol
- Imurek
- Muran
Frequently asked questions
What is azathioprine used for?
Azathioprine is primarily used as an immunosuppressive drug to prevent organ transplant rejection and treat autoimmune diseases like rheumatoid arthritis and Crohn’s disease.
What is the chemical formula and molecular weight of azathioprine?
The chemical formula is **C₉H₇N₇O₂S**, and the molecular weight is **277.26 g/mol**.
How should azathioprine be stored?
Store azathioprine at **ambient temperature** in a dry, well-ventilated area, away from incompatible substances.
What grades or purities of azathioprine does Molekula supply?
Molekula supplies azathioprine in **pharmaceutical-grade purity** suitable for research and development, as well as industrial applications.
Can Molekula supply azathioprine in bulk quantities?
Yes, Molekula can provide azathioprine in **bulk quantities** upon request, subject to availability and regulatory compliance.
What documentation comes with an order of azathioprine?
Each order includes a **Certificate of Analysis (CoA)**, **Material Safety Data Sheet (MSDS)**, and **batch-specific documentation** for traceability.
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.