Synonyms: 1-Piperazinecarboxamide, N,N-diethyl-4-(3-(2,3,6,7-tetrahydro-1,3,7-trimethyl-2,6-dioxo-1H-purin-8-yl)propyl)-, monohydrochloride;N,N-Diethyl-4-(3-(2,3,6,7-tetrahydro-1,3,7-trimethyl-2,6-dioxo-1H-purin-8-yl)propyl)-1-piperazinecarboxamide monohydrochloride