Δ9-Tetrahydrocannabiorcol (Δ9-THCC, (C1)-Δ9-THC) is a phytocannabinoid found in Cannabis.[1] It is a homologue of THC and THCV with the alkyl side chain replaced by a smaller methyl group. Unlike THC and THCV, THCC has negligible affinity for the CB1 and CB2 cannabinoid receptors, but conversely it is significantly more potent than THC or THCV as an activator of the TRPA1 calcium channel which plays an important role in pain perception,[2] and it has been shown to produce analgesic effects via activation of spinal TRPA1 channels.[3][4]

Tetrahydrocannabiorcol structure.png
  • (6aR,10aR)-3,6,6,9-tetramethyl-6a,7,8,10a-tetrahydrobenzo[c]chromen-1-ol
CAS Number
PubChem CID
Chemical and physical data
Molar mass258.361 g·mol−1
3D model (JSmol)
  • CC1=C[C@@H]2[C@@H](CC1)C(OC3=CC(=CC(=C23)O)C)(C)C
  • InChI=1S/C17H22O2/c1-10-5-6-13-12(7-10)16-14(18)8-11(2)9-15(16)19-17(13,3)4/h7-9,12-13,18H,5-6H2,1-4H3/t12-,13-/m1/s1

See alsoEdit


  1. ^ Ross SA, ElSohly MA, Sultana GN, Mehmedic Z, Hossain CF, Chandra S. "Flavonoid glycosides and cannabinoids from the pollen of Cannabis sativa L". Phytochemical Analysis. 16 (1): 45–8. doi:10.1002/pca.809. PMID 15688956.
  2. ^ Bow EW, Rimoldi JM (2016). "The Structure-Function Relationships of Classical Cannabinoids: CB1/CB2 Modulation". Perspectives in Medicinal Chemistry. 8: 17–39. doi:10.4137/PMC.S32171. PMC 4927043. PMID 27398024.
  3. ^ Andersson DA, Gentry C, Alenmyr L, Killander D, Lewis SE, Andersson A, et al. (November 2011). "TRPA1 mediates spinal antinociception induced by acetaminophen and the cannabinoid Δ(9)-tetrahydrocannabiorcol". Nature Communications. 2: 551. doi:10.1038/ncomms1559. PMID 22109525.
  4. ^ Moparthi L, Survery S, Kreir M, Simonsen C, Kjellbom P, Högestätt ED, et al. (November 2014). "Human TRPA1 is intrinsically cold- and chemosensitive with and without its N-terminal ankyrin repeat domain". Proceedings of the National Academy of Sciences of the United States of America. 111 (47): 16901–6. doi:10.1073/pnas.1412689111. PMID 25389312.