1,4-Bis(3,4,5-trimethoxybenzoyl)-2-piperazinemethanol acetate (ester) 129229-98-7 2-Piperazinemethanol, 1,4-bis(3,4,5-trimethoxybenzoyl)-, acetate (ester) N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2-acetyloxymethylpiperazine