cgs-9896 cgs-9896 cgs-9896 is an anxiolytic drug used in scientific research. it has similar effects to benzodiazepine drugs but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic. cgs-9896clinical dataatc codenoneidentifiers iupac name 2-(4-chlorophenyl)-1h-pyrazoloquinolin-3-one cas number77779-36-3 ypubchem cid108030chemspider97139 nunii86pwq4pvn0chemblchembl507327comptox dashboard (epa)dtxsid20998970 chemical and physical dataformulac16h10cln3omolar mass295.73 g·mol−13d model (jsmol)interactive image smiles c1=cc=c2c(=c1)c3=c(c=n2)c(=o)n(n3)c4=cc=c(c=c4)cl inchi inchi=1s/c16h10cln3o/c17-10-5-7-11(8-6-10)20-16(21)13-9-18-14-4-2-1-3-12(14)15(13)19-20/h1-9,19h nkey:qcbuaklowcoucr-uhfffaoysa-n n ny (what is this?) (verify) cgs-9896 is a benzodiazepine receptor partial agonist which produces long-lasting anxiolytic and anticonvulsant effects in animal studies but does not produce sedative effects. it also increases appetite, and reduces the development of gastrointestinal ulcers following chronic stress.