英文同义词: | 2,3-bis(methoxycarbonyl)pyridine1-oxide;1-Oxy-pyridine-2,3-dicarboxylic acid dimethyl ester;DIMETHYL PYRIDINE-2,3-DICARBOXYLATE 1-OXIDE;pyridine-2,3-dicarboxylic acid dimethyl ester N-oxide;2,3-Pyridinedicarboxylic acid, 2,3-dimethyl ester, 1-oxide;2,3-Pyridinedicarboxylic acid, dimethyl ester, 1-oxide |