has role is enantiomer of expectorant 4,6,6-trimethylbicyclo[3.1.1]hept-3-en-2-one (S)-(-)-verbenone (-)-cis-verbenone (-)-verbenone (1S,5S)-4,6,6-trimethylbicyclo[3.1.1]hept-3-en-2-one 150.21760 A 4,6,6-trimethylbicyclo[3.1.1]hept-3-en-2-one in which both chiral centres have S configuration. C10H14O CAS:1196-01-6 CC1=CC(=O)[C@H]2C[C@@H]1C2(C)C CHEBI:78316 DCSCXTJOXBUFGB-JGVFFNPUSA-N InChI=1S/C10H14O/c1-6-4-9(11)8-5-7(6)10(8,2)3/h4,7-8H,5H2,1-3H3/t7-,8+/m0/s1 PMID:24339334 Reaxys:1907623 Wikipedia:Levoverbenone chebi_ontology l-verbenoe levoverbenone (R)-(+)-verbenone