It’s only fair to share… Abacavir CAS Registry Number: 136470-78-5 CAS Name: (1S,4R)-4-[2-Amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol Additional Names: (-)-cis-4-[2-amino-6-(cyclopropylamino)-9H-purin-9-yl]-2-cyclopentene-1-methanol Manufacturers’ Codes: 1592U89 Molecular Formula: C14H18N6O Molecular Weight: 286.33 Percent Composition: C 58.73%, H 6.34%, N 29.35%, O 5.59% Literature References: Nucleoside reverse transcriptase inhibitor (NRTI). Prepn: S. M. Daluge, EP 349242 (1990 to Wellcome Found.); idem, US 5034394 (1991 to Burroughs Wellcome). Asymmetric synthesis: M. T. Crimmins, B. W. King, J. Org. Chem. 61,4192 (1996). …