3-Chloro-4-dimethyl-amino-5-[(1R,2S,5R)-2-isopropyl-5-methyl-cyclo-hex-yloxy]furan-2(5H)-one.

The title compound, C(16)H(26)ClNO(3) contains one almost planar furan-one ring [maximum deviation of 0.021 (2) Å for the O atom] with a stereogenic center (S) and one cyclo-hexane ring which displays a chair conformation and has three stereogenic centers [S at the C atom bearing the isopropyl group, R at the C atom attached to the O atom and R at the C atom bearing the methyl group].