rwj-51204 rwj-51204 rwj-51204 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. rwj-51204identifiers iupac name 5-ethoxymethyl-7-fluoro-3-oxo-1,2,3,5-tetrahydrobenzo imidazopyridine-4-n-(2-fluorophenyl)carboxamide cas number205701-85-5 npubchem cid9822240chemspider7997989 yuniinnj1ll72jschemblchembl80436 ycomptox dashboard (epa)dtxsid90431349 chemical and physical dataformulac21h19f2n3o3molar mass399.398 g·mol−13d model (jsmol)interactive image smiles fc1ccccc1nc(=o)c=3c(=o)ccn4c2c(cc(f)cc2)n(c=34)cocc inchi inchi=1s/c21h19f2n3o3/c1-2-29-12-26-17-11-13(22)7-8-16(17)25-10-9-18(27)19(21(25)26)20(28)24-15-6-4-3-5-14(15)23/h3-8,11h,2,9-10,12h2,1h3,(h,24,28) ykey:vqoqdabvgwlrox-uhfffaoysa-n y ny (what is this?) (verify) rwj-51204 is a nonselective partial agonist at gabaa receptors. it produces primarily anxiolytic effects at low doses, with sedative, ataxia and muscle relaxant effects only appearing at some 20x the effective anxiolytic dose. it was discovered by researchers at the pharmaceutical company johnson & johnson, but its development has been discontinued.