(1S) - (-) -α-Pinene

α-Pinene is found in the oils of many species of many coniferous trees, notably the pine and has insecticidal activity. (1S) - (-) -α-Pinene is a monoterpene and shows sleep enhancing property through a direct binding to GABAA-benzodiazepine (BZD) receptors by acting as a partial modulator at the BZD binding site.