5-22-02-00278 (Beilstein Handbook Reference) 62833-94-7 BENZOIC ACID, o-ISONICOTINAMIDO-, 1'-OXIDE BRN 0485732 Isonicotinamide, N-(o-carboxyphenyl)-, 1-oxide N-(2-Carboxyphenyl)isonicotinamide 1-oxide