2,2'-Bipyridine-5,5'-dicarboxylic acid 2,2'-Bipyridine-5,5'-dicarboxylic acid Synonyms: 5,5'-Dicarboxy-2,2'-bipyridine; 2,2'-BIPYRIDINE-5,5'-DICARBOXYLIC ACID 97% CAS NO.: 1802-30-8 Formula: C12H8N2O4 Weight: 244.2