(1,4-Bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl (1-methylbutyl)carbamate 129230-04-2 Carbamic acid, (1-methylbutyl)-, (1,4-bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl ester N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2-N''-(1'-methyl)butylcarbamoyloxymethylpiperazine