28251-74-3 AIDS-030582 AIDS030582 Hexopyranoside, (7-ethenyl-1,2,3,4,4a,4b,5,6,7,8,10,10a-dodecahydro-2-hydroxy-1,4a,7-trimethyl-1-phenanthrenyl)methyl NSC132340 VIRESCENOSIDE B