CAS Registry Number

CAS 87-42-3 — 6-Chloropurine

6-Chloropurine is a halogenated purine derivative used primarily in organic synthesis, pharmaceutical research, and as a key intermediate in the production of nucleoside analogs for antiviral and anticancer drug development. It appears as a white to off-white crystalline powder with minimal handling hazards. Catalogue details: CAS 87-42-3, molecular formula C5H3ClN4, molecular weight 154.5571 g/mol, stable at ambient conditions, no signal word required. Molekula supplies 6-Chloropurine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.