The molecule is a 4,6,6-trimethylbicyclo[3.1.1]hept-3-en-2-one in which both chiral centres have S configuration. It has a role as an expectorant. It is an enantiomer of a (R)-(+)-verbenone.
(1S,5S)-4,6,6-trimethylbicyclo[3.1.1]hept-3-en-2-one