124685-20-7 2,4(1H,3H)-Pyrimidinedione, 1-(3-azido-2,3,5,6-tetradeoxy-6-phosphono-b-D-erythro-hexofuranosyl)-5-methyl- 3',5'-Dideoxy-5'-phosphonomethyl-3'-azido-thymidine 5'(H2PO3CH2)AZT AIDS-001280 AIDS001280