1-Piperazinecarbodithioic acid, 4-methyl-, nicotinamidomethyl ester 38221-47-5 4-Methyl-1-piperazinecarbodithioic acid nicotinamidomethyl ester 4-Methyl-piperazin-1-carbondithionsaeure((nicotinoyl-amino)methyl)-ester [German] BRN 0813023