9(S)-Hexahydrocannabinol-d9 (Item No. 39346) is intended for use as an internal standard for the quantification of 9(S)-hexahydrocannabinol (Item Nos. 37942 | 27501) by GC- or LC-MS. 9(S)-Hexahydrocannabinol is structurally similar to known phytocannabinoids.1 It induces drowsiness, decreased motor activity, occasional partial ptosis, and occasional head drop, markers of psychotropic activity, in rhesus monkeys.2 This product is intended for research and forensic applications.WARNING This product is not for human or veterinary use.