... 4,4'-dicarboxylic acid dimethyl ester; 4,4'-Bis(methoxycarbonly)-2,2'-bipyridine; 2-(4-methoxycarbonyl-2-pyridinyl)-4-pyridinecarboxylic acid methyl ester CAS: 71071-46 ... 2,2'-Bipyridinyl-4,4'-dicarboxylic acid dimethyl ester CAS: 71071-46-0 is raw material of 4,4'-bis(hydroxymethyl)-2 ... 6813-38-3 Dimethyl 2,2'-bipyridine-4,4'-dicarboxylate CAS: 71071-46-0 4,4'-Bis(hydroxymethyl)-2,2'-bipyridine CAS: ...