niravoline niravoline niravoline is a chemical compound with the formula c22h25n3o3. it has diuretic and aquaretic effects and has been studied for its potential use for cerebral edema and cirrhosis. niravoline names preferred iupac name n-methyl-2-(3-nitrophenyl)-n-acetamide identifiers cas number 130610-93-4 3d model (jsmol) interactive image pubchem cid 9821174 unii r8t17q4lxc inchi inchi=1s/c22h25n3o3/c1-23(21(26)14-16-7-6-9-18(13-16)25(27)28)22-19-10-3-2-8-17(19)15-20(22)24-11-4-5-12-24/h2-3,6-10,13,20,22h,4-5,11-12,14-15h2,1h3/t20-,22-/m0/s1key: zsdaqbwgaoktsi-unmcsnqzsa-n smiles cn(1(cc2=cc=cc=c12)n3cccc3)c(=o)cc4=cc(=cc=c4)(=o) properties chemical formula c22h25n3o3 molar mass 379.460 g·mol−1 except where otherwise noted, data are given for materials in their standard state (at 25 °c , 100 kpa). infobox references it exerts its pharmacological effect as a kappa opioid receptor agonist.