3-Oxo-7,8-dihydro-α-ionone

3,5,5-trimethyl-4-(3-oxobutyl)cyclohex-2-en-1-one

3,5,5-Trimethyl-4-(3-oxobutyl)-2-cyclohexen-1-one

1-(3-Oxobutyl)-2,6,6-trimethyl-2-cyclohexene-4-one

4-(2,6,6-Trimethyl-4-oxo-2-cyclohexenyl)-2-butanone