ns-2664 ns-2664 ns-2664 (ls-193,048) is an anxiolytic drug with a novel chemical structure, developed by the small pharmaceutical company neurosearch. it has similar effects to benzodiazepine drugs, but is structurally distinct and so is classed as a nonbenzodiazepine anxiolytic. ns-2664 is a potent but non-selective partial agonist at gabaa receptors, although with little efficacy at the α1 subtype and more at α2 and α3. it has potent anticonvulsant effects in animal studies, but a relatively short duration of action, and produces little sedative effects or physical dependence. ns-2664identifiers iupac name 5-furan-3-yl-1-(3-imidazol-1-yl-phenyl)-1h-benzoimidazole cas number184097-13-0 ypubchem cid9840300chemspider8016018 nuniiy8n5l9asf9chemical and physical dataformulac20h14n4omolar mass326.359 g·mol−13d model (jsmol)interactive image smiles c5occc5-c(cc1nc4)ccc1n4-c2cc(ccc2)-n3cncc3 inchi inchi=1s/c20h14n4o/c1-2-17(23-8-7-21-13-23)11-18(3-1)24-14-22-19-10-15(4-5-20(19)24)16-6-9-25-12-16/h1-14h nkey:qmkrpsvbkkeaks-uhfffaoysa-n n ny (what is this?) (verify)