Name 2-Hydroxy-6-mercaptopurine ; 6-Thioxanthine;
Molecular Formula C5H4N4OS
Molecular Weight 168.18
CAS Registry Number 2002-59-7

Anti-cancer
Appearance A faintly yellow crystalline powder
Identification Infrared absorption
Loss on drying ≤1.0%
Residue on ignition ≤0.1%
Heavy metals ≤20ppm
Assay (HPLC) ≥98.0%