potassium salt radical potassium 2-(4-carboxylatophenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide 2-(4-carboxyphenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide potassium salt 315.075 315.387 A potassium salt having 2-(4-carboxylatophenyl)-4,4,5,5-tetramethylimidazoline-1-oxyl-3-oxide as the counterion. C14H16KN2O4 CHEBI:90701 InChI=1S/C14H17N2O4.K/c1-13(2)14(3,4)16(20)11(15(13)19)9-5-7-10(8-6-9)12(17)18;/h5-8H,1-4H3,(H,17,18);/q;+1/p-1 PMID:22029526 Reaxys:18374524 Reaxys:8596190 VYEUQMVIGXFZQU-UHFFFAOYSA-M [O]N1C(C([N+](=C1C=2C=CC(=CC2)C(=O)[O-])[O-])(C)C)(C)C.[K+] carboxy-PTIO potassium salt chebi_ontology potassium [2-(4-carboxylatophenyl)-4,4,5,5-tetramethyl-3-oxo-4,5-dihydro-1H-3lambda(5)-imidazol-1-yl]oxidanyl potassium carboxylato-PTIO