| 英文名称: | | 5,6-dihydro-6,6-dimethyl-4-oxo-4h-pyran-2-carboxylic aci | | 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic aci | | 5,6-dihydro-6,6-dimethyl-4-oxo-4h-pyran-2-carboxylic acid | | acide dimethyl-6,6 dihydro-5,6 pyrone-4 carboxylique-2 | | 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6- carboxylic acid | | 3,4-Dihydro-2,2-dimethyl-4-oxo-2H-pyran-6-carboxylic acid |
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