| | Identification | Back Directory |  | [Name] 
 2-MERCAPTOPURINE
 |  | [CAS] 
 28128-19-0
 |  | [Synonyms] 
 2-MP
 2-THIOPURINE
 2-purinethiol
 2-MERCAPTOPURINE
 2-THIOPURINE 95%
 1H-Purine-2-thiol
 7H-Purine-2-thiol
 9H-Purine-2-thiol
 2-Mercapto-9H-purine
 Mercaptopurine Impurity 24
 2-Purinethiol,  2-Thiopurine
 1,3-dihydro-2H-purine-2-thione
 2H-Purine-2-thione,3,9-dihydro-
 2-Mercaptopurine >=95%, crystalline
 |  | [EINECS(EC#)] 
 248-855-0
 |  | [Molecular Formula] 
 C5H4N4S
 |  | [MDL Number] 
 MFCD00047145
 |  | [MOL File] 
 28128-19-0.mol
 |  | [Molecular Weight] 
 152.18
 | 
 | Chemical Properties | Back Directory |  | [Melting point ] 
 250 °C (decomp)
 |  | [Boiling point ] 
 290.7±23.0 °C(Predicted)
 |  | [density ] 
 1.82±0.1 g/cm3(Predicted)
 |  | [solubility ] 
 1 M NH4OH: 50mg/mL, clear to slightly hazy, yellow to brown
 |  | [form ] 
 crystalline
 |  | [pka] 
 6.82±0.20(Predicted)
 |  | [color ] 
 yellow
 | 
 | Hazard Information | Back Directory |  | [Uses] 
 2-Mercaptopurine (2-MP), a thiopurine and analog of the anti-cancer drug 6-mercaptopurine (6-MP), has been used to study the substrate and binding specificity and kinetics of xanthine oxidase-catalyzed hydroxylation and myeloperoxidase (MPO) reactions.  2-Mercaptopurine inhibited lipopolysacharide (LPS)-dependent nitric oxide (NO) production in B cells.
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