Also Called: Diethylenediamine; Piperazine; [solid]; [liquid]; Piperazine[liquid]; Piperazine[solid];[liquid and solid];piperazine [solid];Camphor Oil;Piperazin;Hexahydropyrazine;HEXAHYDROPYRAZIN;1,4-DIAZACYCLOHEXAN;piperazín;Piperazine (vapor and aerosol);DIAETHYLENDIAMIN