atibeprone atibeprone atibeprone is an antidepressant which was developed in the mid-1990s, but was never marketed. atibeproneclinical dataatc codenoneidentifiers iupac name 3,4-dimethyl-7--2h-chromen-2-one cas number153420-96-3 npubchem cid179342chemspider156109 yuniipzv3p03f1uchemblchembl19004 ycomptox dashboard (epa)dtxsid00165325 chemical and physical dataformulac17h18n2o3smolar mass330.40 g·mol−13d model (jsmol)interactive image smiles o=c/2oc3cc(occ1nnc(s1)c(c)c)ccc3\c(=c\2c)c inchi inchi=1s/c17h18n2o3s/c1-9(2)16-19-18-15(23-16)8-21-12-5-6-13-10(3)11(4)17(20)22-14(13)7-12/h5-7,9h,8h2,1-4h3 ykey:hqtnjpczuqayab-uhfffaoysa-n y ny (what is this?) (verify)