C5H4N4S
152.18 g/mol
APIDanger
6-Mercaptopurine
CAS50-44-2EC200-037-4
Category
API
Compound Class
Heterocycle
Primary Use
Pharmaceutical Raw Material
6-Mercaptopurine is a pharmaceutical raw material used in the manufacture of medications for cancer and autoimmune conditions. It is a sulfur-containing heterocyclic compound with low molecular weight and moderate polarity.
pharmaceutical manufacturingactive pharmaceutical ingredient supply
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
Mercaptopurine hydrate
CAS6112-76-1
pharmaceutical raw material
ReferenceSame Category
Amitriptyline
CAS50-48-6
pharmaceutical raw material
ReferenceSame Category
Estradiol benzoate
CAS50-50-0
pharmaceutical raw material
ReferenceSame Category
Reserpine
CAS50-55-5
pharmaceutical raw material
ReferenceSame Category
Oxytocin
CAS50-56-6
pharmaceutical raw material
Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H361Suspected of damaging fertility or the unborn child
H340May cause genetic defects
H360May damage fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for 6-Mercaptopurine (CAS 50-44-2) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
3,7-dihydropurine-6-thione
InChIKey
GLVAUDGFNGKCSF-UHFFFAOYSA-N
SMILES
C1=NC2=C(N1)C(=S)N=CN2
Synonyms (71)
- 6-MP
- U-4748
- Azathioprine EP Impurity B
- Mercaptopurina [INN-Spanish]
- Mercaptopurine (INN)
- Mercaptopurinum [INN-Latin]
- 1,9-dihydropurine-6-thione
- 1H-Purine, 6-mercapto-
- 1H-Purine-6(9H)-thione
- 1H-purine-6(7H)-thione
- 3,7-dihydropurine-6-thione
- 3H-Purine-6-thiol
- 6 Mercaptopurine Monohydrate
- 6-Mercaptopurin
- 6-Mercaptopurine
- 6-Mercaptopurine (Standard)
- 6-Merkaptopurin
- 6-Merkaptopurin [Czech]
- 6-Purinethiol
- 6-Thiohypoxanthine
- 6-Thiopurine
- 6-Thioxopurine
- 7H-Purin-6-yl hydrosulfide #
- 7H-purine-6-thiol
- 9H-Purin-6-yl hydrosulfide
- 9H-Purine-6(1H)-thione
- 9H-Purine-6-thiol
- Azathioprine impurity B
- BW 57 323H
- DISCONTINUED, see M225450
- H-Purine-6(1H)-thione
- Hypoxanthine, thio-
- Ismipur
- Leukerin
- Leupurin
- Mercaleukim
- Mercaleukin
- Mercaptopurin
- Mercaptopurin [German]
- Mercaptopurina
- Mercaptopurine (6-MP)
- Mercaptopurine (VAN)
- Mercaptopurine anhydrous
- Mercaptopurine, 6-
- Mercaptopurinum
- Mercapurin
- Merkaptopuryna
- Merkaptopuryna [Polish]
- Mern
- Puri-Nethol
- Purimethol
- Purine, 6-mercapto-
- Purine-6(1H)-thione
- Purinethiol
- Purinethol (TN)
- Purixan
- Xaluprine
- a thiopurine
- mercaptopurine
- thiohypoxanthine
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