1(2H)-Pyrimidineethanamine, tetrahydro-3-butyl-N-phenyl-, ethanedioate, hydrate (1:2:1) 77869-65-9 N-(2-(3-n-Butylhexahydropyrimidino)ethyl)aniline oxalate hydrate Tetrahydro-3-butyl-N-phenyl-1(2H)-pyrimidineethanamine ethanedioate, hydrate (1:2:1)