(1,4-Bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl (1-ethylpropyl)carbamate 129230-00-8 Carbamic acid, (1-ethylpropyl)-, (1,4-bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl ester N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2-N''-(1'-ethyl)propylcarbamoyloxymethylpiperazine