delta 9 is the plant version of THC, and there are numerous government patents on different variations of delta 8 THC.
The numbering scheme that I am familar with does not allow for a delta-8 or delta-9. It is either delta-1 or delta-6 that is the principal form found in marijuana. Can you tell me where the pertinent double bond is in the delta-8 or delta-9 THC as numbered according to this new scheme? I am sort of surprised that there is this new numbering scheme since by my count there are only 7 positions where the double bond can go.
http://rhodium.lycaeum.org (http://rhodium.lycaeum.org)