CAS Number: 6112-76-1
Chemical Name: Mercaptopurine Monohydrate
Molecular Formula: C5H6N4OS
Molecular Weight: 170.19

CAS Number: 90947-51-6
Chemical Name: 6,6′-Sulfanediyldi-7H-purine
Molecular Formula: C10H6N8S
Molecular Weight: 270.27

CAS Number: 49808-20-0
Chemical Name: 6,6′-disulfanediyldi-7H-purine
Molecular Formula: C10H6N8S2
Molecular Weight: 302.34