carbenzide carbenzide carbenzide (inn), also known as carbazic acid, is a hydrazine derivative monoamine oxidase inhibitor (maoi) antidepressant which was never marketed. carbenzideclinical dataatc codenoneidentifiers iupac name ethyl 2-(1-phenylethyl)hydrazinecarboxylate cas number3240-20-8pubchem cid18608chemspider17575unii2v9j52kym0chemblchembl2105955chemical and physical dataformulac11h16n2o2molar mass208.261 g·mol−13d model (jsmol)interactive image smiles o=c(occ)nnc(c1ccccc1)c inchi inchi=1s/c11h16n2o2/c1-3-15-11(14)13-12-9(2)10-7-5-4-6-8-10/h4-9,12h,3h2,1-2h3,(h,13,14)key:msiuiudktknuet-uhfffaoysa-n