1-Diethylcarbamyl-4-methylpiperazine hydrochloride 1-Piperazinecarboxamide, N,N-diethyl-4-methyl-, hydrochloride 1-Piperazinecarboxamide, N,N-diethyl-4-methyl-, monohydrochloride (8CI)(9CI) 5348-97-0 90-89-1 Diethylcarbamazine hydrochloride EINECS 226-309-2 N,N-Diethyl-4-methylpiperazine-1-carboxamide monohydrochloride NSC 1364