| 2,2-dimethyl-6-carbobutoxy-2,3-dihydro-4-pyrone |
| 2-carbo-n-butoxy-6,6-dimethyl-5,6-dihydro-1,4-pyrone |
| 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic aci butyl ester |
| 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic acid butyl ester |
| 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic acid, n-butyl ester |
| 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic acid-n-butyl ester |
| 4-pyrone-2-carboxylic acid-5,6-dihydro-6,6-dimethyl, butyl ester |
| alpha,alpha-dimethyl-alpha'-carbobutoxy-dihydro-gamma-pyrone |
| alpha,alpha-dimethyl-alpha'-carboxydihydro-gamma-pyrone butyl ester |
| bmoo |
| butopyronoxyl |
| butyl 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylate |
| butyl 5,6-dihydro-6,6-dimethyl-4-oxo-4h-pyran-2-carboxylate |
| butyl dihydro-6,6-dimethyl-4-oxopyran-2-carboxylate |
| butyl mesityl oxide |
| butyl-3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylate |
| butylmesityl oxide oxalate |
| dihydropyrone |
| ent 9 |
| indalone |
| n-butyl ester of 3,4-dihydro-2,2-dimethyl-4-oxo-2h-pyran-6-carboxylic acid |
| n-butyl mesityl oxide oxalate |
| n-butyl-3,4-dihydro-2,2-dimethyl-4-oxo-1,2h-pyran-6-carboxylate |
| n-butylmesityloxid oxalate |
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