4-25-00-02791 (Beilstein Handbook Reference) 4-Chloro-6-ethyleneimino-2-p-chloranilinopyrimidine 6-Aziridino-4-chloro-2-p-chloranilinopyrimidine 64398-22-7 BRN 0270896 Pyrimidine, 6-aziridino-4-chloro-2-(p-chloroanilino)-