13164-89-1 17269-54-4 27086-04-0 4206-89-7 Azirino(2',3':3,4)pyrrolo(1,2-a)indole-4,7-dione, 1,1a,2,8,8a,8b-hexahydro-6-(1-aziridinyl)-1,5-dimethyl-8a-hydroxy-8-(hydroxymethyl)-, 8-carbamate