allopurinol Cas No|Cas Number|CAS Registry Number:291279-53-3 .Chemical Name|Molecular Name:allopurinol Formulanor:C5H4N4O Synonyms: Molecular Weight:136.111 Tags: 291279-53-3, allopurinol, C5H4N4O, CAS 291279-53-3, CAS NO 291279-53-3, CAS Number 291279-53-3 More cas number search on molecularinfo.com which has the Cas Number/CAS Registry Number database. 赞赏/donate