1-piperazinecarboxamide, N-ethyl-4-(4-hydroxyphenyl)- InChI=1/C13H19N3O2/c1-2-14-13(18)16-9-7-15(8-10-16)11-3-5-12(17)6-4-11/h3-6,17H,2,7-10H2,1H3,(H,14,18 N-ethyl-4-(4-hydroxyphenyl)piperazine-1-carboxamide