英文同义词: | [4,4''-Bipyridine]-2,2'',6,6''-tetracarboxylic acid tetraethyl ester;[4,4'-BIPYRIDINE]-2,2',6,6'-TETRACARBOXYLIC ACID TETRAETHYL ESTER;Tetraethyl [4,4'-bipyridine]-2,2',6,6'-tetracarboxylate;[4,4'-Bipyridine]-2,2',6,6'-tetracarboxylic acid, 2,2',6,6'-tetraethyl ester;2,2',6,6'-Tetraethoxycarbonyl-4,4'-bipyridine |