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| 16888-03-2 | Ethanol,2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,4,6,8-tetRAyltetRAimino)tetRAkis-(9CI); Ethanol,2,2',2'',2'''-(pyrimido[5,4-d]pyrimidine-2,4,6,8-tetRAyltetRAimino)tetRA-(6CI,7CI,8CI); Pyrimido[5,4-d]pyrimidine, ethanol deriv.; NSC 515780; RA 13 | ![]() | C8H10N4O | ÏêÇé | ¹©Ó¦ÉÌ |