189747-34-0

8-dichloropyriMido[5 4,6-Dichloropyrimido[5,4-d]pyrimidine 2,8-dichloropyrimido[5,4-d][1,3]diazine Pyrimido[5,4-d]pyrimidine, 2,8-dichloro- 2,8-dichloro-[1,3]diazino[5,4-d]pyriMidine