2,4-Bis(1-aziridinyl)-6-ethoxypyrimidine 2,4-Bis-ethyleneimino-6-ethoxypyrimidine 4-25-00-03362 (Beilstein Handbook Reference) 64398-61-4 BRN 0211883 Pyrimidine, 2,4-bis(1-aziridinyl)-6-ethoxy-