Presence of a terpenoid compound compound in fibers and seeds of flax (Linum usitatissimum) with at least several characteristics similar to that of cannabidiol (CBD) was previously described (Styrczewska et al., 2012) https://pubmed.ncbi.nlm.nih.gov/31013866

Arguments supporting possibility that this compound is cannabidiol include: UV absorption spectrum, retention time in ultra performance liquid chromatography (UPLC), and mass spectrometry. Additionally CBD-like compound from flax mimicked some effects of cannabidiol in fibroblasts. (Styrczewska et al., 2012).

In the context of idea of using flax as a possible natural source of cannabidiol (Storozhuk 2023 https://pubmed.ncbi.nlm.nih.gov/37138768), I’m wondering what kind of chemical evidence is additionally required to firmly prove that CBD-like compound from flax is actually cannabidiol?