116776-45-5 5,6-Dihydro-5-imino-2-phenyl-7H-1,3,4-thiadiazolo(3,2-a)pyrimidin-7-one 7H-1,3,4-Thiadiazolo(3,2-a)pyrimidin-7-one, 5,6-dihydro-5-imino-2-phenyl- BRN 4319232