1,2,3-Thiadiazole-4-carbaldehyde (CAS NO.27643-15-8) is also called as 4-Formyl-1,2,3-thiadiazole ; Buttpark 96\04-64 ; 1,2,3-Thiadiazole-4-carbaldehyde, 90+% ; 1,2,3-Thiadiazole-4-carboxaldehyde 95 .