7H-Pyrrolo[2,3-d]pyrimidin-2-amine,

Also known as 2-amino-4-chloropyrrolo[2,3-d]pyrimidine or 6-chloro-7-deazaguanine (CAS 84955-31-7), this heterocyclic building block is manufactured directly by Chem-Stone (Guangzhou) Co., Ltd., which supplies detailed physical data including a molecular weight of 168.58, melting point of 215-217°C and boiling point of 472.3°C. It is sold worldwide across North America, Europe, Asia, the Middle East, and Africa.