英文别名4H-Pyran-4,4-dicarboxylic acid, tetrahydro-, 4,4-diethyl ester; DIETHYL DIHYDRO-2H-PYRAN-4,4(3H)-DICARBOXYLATE; Diethyl 4,4-tetrahydropyran dicarboxylate; oxane-4,4-dicarboxylic acid diethyl ester; Diethyl Tetrahydro-4H-pyran-4,4-dicarboxylate; diethyl oxane-4,4-dicarboxylate; tetrahydro-4H-pyran-4,4-dicarboxylic acid,diethyl ester; tetrahydropyran-4,4-dicarboxylic acid diethyl ester; Tetrahydro-pyran-4,4-dicarbonsaeure-diaethylester; 4,4-Bis(ethoxycarbonyl)tetrahydropyran; 4H-Pyran-4,4-dicarboxylic acid, tetrahydro-, diethyl ester 
