129477-57-2 2-Piperazinecarboxylic acid, 1,4-bis(3,4,5-trimethoxybenzoyl)-, hexyl ester Hexyl 1,4-bis(3,4,5-trimethoxybenzoyl)-2-piperazinecarboxylate N,N'-Di-(3',4',5'-trimethoxybenzoyl)-2-n-hexyloxycarbonyl piperazine