paraxazone paraxazone paraxazone is an antidepressant. it acts as a reversible inhibitor of the enzyme monoamine oxidase (mao). it was never marketed. paraxazoneclinical datapregnancycategory ? routes ofadministrationoralatc codenonelegal statuslegal status in general: uncontrolled identifiers iupac name 2-(3-oxo-2,3-dihydro-4h-1,4-benzoxazin-4-yl)acetamide cas number26513-79-1pubchem cid3047812chemspider2310126unii2h6on8wa7lcomptox dashboard (epa)dtxsid10181096 chemical and physical dataformulac10h10n2o3molar mass206.201 g·mol−13d model (jsmol)interactive image smiles o=c(n)cn1c2c(occ1=o)cccc2