Benzamide, N,N'-(1,4-phenylene)bis[4-(1,4,5,6-tetrahydro-2-pyrimidinyl)-, dihydrochloride Benzamide, N,N'-p-phenylenebis[4-(1,4,5,6-tetrahydro-2-pyrimidinyl)-, dihydrochloride NSC73849