6-Methyl-4-hydroxy-1,3,3a,7-tetraazaindene7-Hydroxy-5-methyl[1,2,4]triazolo[1,5-a]pyrimidine5-Methyl[1,2,4]triazolo[1,5-a]pyrimidin-7-ol5-甲基[1,2,4]三唑[1,5-a]嘧啶-7-醇7-羟基-5-甲基[1,2,4]三唑并[1,5-a]嘧啶7-Hydroxy-5-methyl-1,3,4-triazaindolizineNSC 511493NSC 32071