Synonyms: 2H-Pyran, 2-(3,3-dimethylbicyclo(2.2.1)hept-2-yl)tetrahydro-4,6-dimethyl-, didehydro deriv.;6-(3,3-Dimethylnorborn-2-yl)-2,4-dimethyldihydropyran;2-(3,3-Dimethylbicyclo(2.2.1)hept-2-yl)tetrahydro-4,6-dimethyl-2H-pyran, didehydro derivative;6-(3,3-dimethylbicyclo[2.2.1]hept-2-yl)-2,4-dimethyl-3,6-dihydro-2H-pyran