(1,4-Bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl (2-methylbutyl)carbamate 129230-08-6 Carbamic acid, (2-methylbutyl)-, (1,4-bis(3,4,5-trimethoxybenzoyl)-2-piperazinyl)methyl ester N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2-N''-(2'-methyl)butylcarbamoyloxymethylpiperazine