1,4-Benzenedicarboxamide, N,N'-bis[4-(1,4,5,6-tetrahydro-2-pyrimidinyl)phenyl]-, dihydrochloride 73-53-0 FDA 0090 HR 2164 NSC 57153 NSC57153 Terephthalanilide, 4',4''-bis(1,4,5,6-tetrahydro-2-pyrimidinyl)-, dihydrochloride