Synonyms: 4,4'-DICARBOXY-2,2'-BIQUINOLINE DIPOTASSIUM SALT;4,4'-DICARBOXY-2,2'-BIQUINOLINE DIPOTASSIUM SALT TRIHYDRATE;4,4'-DICARBOXY-2,2'-BIQUINOLINE, POTASSIUM SALT;2,2'-BICINCHONINIC ACID DIPOTASSIUM SALT;2,2'-BICINCHONINIC ACID DIPOTASSIUM SALT TRIHYDRATE;2,2'-BIQUINOLINE-4,4'-DICARBOXYLIC ACID DIPOTASSIUM SALT;2,2'-BIQUINOLINE-4,4'-DICARBOXYLIC ACID DIPOTASSIUM SALT TRIHYDRATE;dipotassium [2,2'-biquinoline]-4,4'-dicarboxylate