6α-Hydroxycannabidiol-d9 is the labelled analogue of 6α-Hydroxycannabidiol (H824805) and also a metabolite of Canabidiol (C175300), amajor constituents in marijuana.6α-Hydroxycannabidiol can be used to investigate canabidiol metabolism andhuman liver microsomes that metabolizeCanabidiol into6α-Hydroxycannabidiol.