Sub Group: Nucleotides and Nucleosides Alphabetic Listing Catalog Number: 8342 Formula: C4H3ClN2O CAS Number: 4765-77-9 Molecular Weight: 130.53 Synonyms: 6-chloro-4(1H)-Pyrimidinone6-chloro-4(3H)-Pyrimidinone6-chloro-4-Pyrimidinol4-Chloropyrimidin-6-oneN