英文别名3-CARBOMETHOXY-2-PYRONE; METHYL 2-OXO-2 H-PYRAN-3-CARBOXYLATE; METHYL 2-PYRONE-3-CARBOXYLATE; 2-Oxo-2H-pyran-3-carboxylic acid methyl ester; methyl 2-oxopyran-3-carboxylate; 3-methoxycarbonyl-2-pyrone; 3-carbomethoxy-2H-pyran-2-one; 2H-Pyran-3-carboxylic acid, 2-oxo-, methyl ester 
