2,4-Bis(1-aziridinyl)-6-chloro-5-phenylpyrimidine 4-25-00-03004 (Beilstein Handbook Reference) 4-Chloro-2,6-bis-ethyleneimino-5-phenylpyrimidine 64398-31-8 BRN 0273467 Pyrimidine, 2,4-bis(1-aziridinyl)-6-chloro-5-phenyl-