1,4-Benzenedicarboxamide, 2-amino-N,N'-bis[4-(1,4,5,6-tetrahydro-2-pyrimidinyl)phenyl]- dihydrochloride 2430-89-9 HR 2257 NSC66762 Terephthalanilide, 2-amino-4',4''-bis(1,4,5,6-tetrahydro-2-pyrimidinyl)-, dihydrochloride