(2-(Diphenylmethoxy)ethyl)dimethylammonium dihydrogen 2-hydroxypropane-1,2,3-tricarboxylate 2-(Diphenylmethoxy)-N,N-dimethylethylamine citrate (1:1) 58-73-1 88637-37-0 Diphenhydramine citrate EINECS 289-432-0 Ethanamine, 2-(diphenylmethoxy)-N,N-dimethyl-, 2-hydroxy-1,2,3-propanetricarboxylate (1:1)