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Application in Particular Diseases
Azathioprine structure
Chemical Name:
Molecular Formula:
Formula Weight:
MOL File:

Azathioprine Properties

Melting point:
1.5379 (rough estimate)
refractive index 
1.7400 (estimate)
storage temp. 
Soluble in Dichloromethane and dimethyl sulfoxide.
8.2(at 25℃)
Water Solubility 
<0.1 g/100 mL at 23 ºC
Stable. Incompatible with strong oxidizing agents, strong bases.
CAS DataBase Reference
446-86-6(CAS DataBase Reference)
EPA Substance Registry System
1H-Purine, 6-[(1-methyl-4-nitro-1H-imidazol- 5-yl)thio]-(446-86-6)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  Xi,T,Xn
Risk Statements  45-22-36/37/38-20/21/22
Safety Statements  53-22-26-36/37-45-36
WGK Germany  3
RTECS  UO8925000
Hazard Note  Irritant
HazardClass  IRRITANT
HS Code  29339900
Hazardous Substances Data 446-86-6(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H350 May cause cancer Carcinogenicity Category 1A, 1B Danger
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P501 Dispose of contents/container to..…

Azathioprine price More Price(11)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich A4638 Azathioprine ≥98% 446-86-6 1g $90.1 2018-11-13 Buy
Sigma-Aldrich 1046001 Azathioprine United States Pharmacopeia (USP) Reference Standard 446-86-6 200mg $348 2018-11-13 Buy
TCI Chemical A2069 Azathioprine >98.0%(HPLC)(T) 446-86-6 5g $128 2018-11-22 Buy
TCI Chemical A2069 Azathioprine >98.0%(HPLC)(T) 446-86-6 25g $442 2018-11-22 Buy
Alfa Aesar J62314 Azathioprine 446-86-6 1g $76.1 2018-11-13 Buy

Azathioprine Chemical Properties,Uses,Production

Application in Particular Diseases

In Rheumatic Arthritis:
Azathioprine is a purine analog that is converted to 6-mercaptopurine and is thought to interfere with DNA and RNA synthesis. Antirheumatic effects may be seen in 3 to 4 weeks. It should be discontinued if no response is observed after 12 weeks at maximal doses. Its major adverse effects are bone marrow suppression (leukopenia, macrocytic anemia, thrombocytopenia, pancytopenia), stomatitis, GI intolerance, infections, drug fever, hepatotoxicity, and oncogenic potential.

Chemical Properties

Azathioprine is a complex heterocyclic compound which forms pale yellow crystals.

Chemical Properties

Yellow Solid


immunosuppressant, antineoplastic, antirheumatic


An immunosuppressive antimetabolite. Also active as disease modifying antirheumatic drug (DMARD). Azathioprine is a purine analog with immunosuppressive effects.


ChEBI: A thiopurine that is 6-mercaptopurine in which the mercapto hydrogen is replaced by a 1-methyl-4-nitroimidazol-5-yl group. It is a prodrug for mercaptopurine and is used as an immunosuppressant, prescribed for the treatment of inflammatory conditions and a ter organ transplantation and also for treatment of Crohn's didease and MS.

brand name

Imuran (Promethus).

General Description

Pale yellow crystals or yellowish powder. Decomposes at 243-244°C. Used for the treatment of rheumatoid arthritis. A known carcinogen.

Air & Water Reactions

Sensitive to oxidation in the air. Insoluble in water.

Reactivity Profile

Azathioprine may react exothermically with acids. Incompatible with isocyanates, peroxides, phenols, epoxides, anhydrides, and acid halides. Hydrolyzed by strongly basic solutions . May react with strong reducing agents to generate flammable gaseous hydrogen or hydrogen sulfide.


Confirmed carcinogen.

Fire Hazard

Flash point data for Azathioprine are not available. Azathioprine is probably combustible.

Contact allergens

This immunosuppressive and antineoplastic drug is derived from 6-mercaptopurine. It caused allergic contact dermatitis in a mother crushing tablets for her leukemic son, and occupational dermatitis in a pharmaceutical reconditioner of old tablet packaging machines, and in a production mechanic working in packaging for a pharmaceutical company.

Safety Profile

Confirmed human carcinogen producing bladder tumors and leukemia. Poison by subcutaneous, intradermal, and intraperitoneal routes. Moderately toxic by ingestion. Human systemic effects: liver changes, hypermotility, diarrhea, nausea or vomiting, increased body temperature, BP lowering, decreased urine volume or anuria, normocytic anemia, bone marrow changes. An experimental teratogen. Other experimental reproductive effects. Human mutation data reported. When heated to decomposition it emits very toxic fumes of NO,xand SOx. An immunosuppressant.

Potential Exposure

Azathioprine is an immunosuppressive agent, generally used in combination with a corticosteroid to prevent rejection following renal homotransplantations. It also is used following transplantation of other organs. Other uses of azathioprine include the treatment of a variety of presumed autoimmune diseases, including rheumatoid arthritis; ankylosing spondylitis; systemic lupus erythematosus; dermatonyositis, periarteritis nodosa, scleroderma, refractory thombocytopenic purpura; autoimmune hemolytic anemia; chronic active liver disease; regional enteritis; ulcerative colitis; various autoimmune diseases of the eye; acute and chronic glomerulonephritis; the nephritic syndrome; Wegener’s granulomatosis; and multiple sclerosis.

First aid

Move victim to fresh air. Call 911 or emergency medical service. Give artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult. Remove and isolate contaminated clothing and shoes. In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin. Keep victim warm and quiet. Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed. Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy.


UN2811 Toxic solids, organic, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required.


Incompatible with reducing agents, such as hydrides (may cause the release of explosive gases), oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong acids (violent exothermic reaction), strong bases.

Azathioprine Preparation Products And Raw materials

Raw materials

Preparation Products

Azathioprine Suppliers

Global( 207)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd.
+86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19918 60
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21968 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20680 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32457 55
020-81716319 CHINA 2543 55
Xiamen AmoyChem Co., Ltd
+86 (0)592-605 1114 CHINA 6374 58
Jinan Jianfeng Chemical Co., Ltd
15562555968 CHINA 615 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 24001 58
Yunbio Tech Co.,Ltd.
18046518538 CHINA 252 58
career henan chemical co
+86-371-86658258 CHINA 19923 58

View Lastest Price from Azathioprine manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2018-08-01 Azathioprine
US $100.00 / KG 1KG 99% Customized career henan chemical co

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