HU-210 is a
synthetic cannabinoid that was first synthesized in
1988 by the group led by Professor
Raphael Mechoulam at the
Hebrew University.
[1][2][3] HU-210 is 100 to 800 times more potent than natural
THC from
cannabis and has an extended duration of action.
[4] HU-210 is the
(-)-1,1-dimethylheptyl analog of 11-hydroxy-Δ8-tetrahydrocannabinol, in some references it is called 1,1-dimethylheptyl-11-hydroxytetrahydrocannabinol. The abbreviation
HU stands for
Hebrew University.
Per a
2005 article in the
Journal Of Clinical Investigation, HU-210 with daily high doses over a few weeks stimulates
neural growth in rats'
hippocampus region, the opposite effect of drugs like
alcohol,
nicotine,
heroin, and
cocaine. It was also indicated by this increased neural growth to entail antianxiety and
antidepressant effects.
[5]
HU-210, alongside other
synthetic cannabinoids like
WIN 55,212-2 and
JWH-133, is implicated in preventing the inflammation caused by
Amyloid beta proteins involved in
Alzheimer's Disease, in addition to preventing cognitive impairment and loss of neuronal markers. This anti-inflammatory action is induced through the agonization of
cannabinoid receptors which prevents
microglial activation that elicits the inflammation. Additionally, cannabinoids completely abolish neurotoxicity related to microglia activation in rat models.
[6]
HU-210 is a potent
analgesic with many of the same effects as natural THC.
JWH-073 is an
analgesic chemical from the aminoalkylindole family, which acts as a
cannabinoid agonist at both the CB1 and CB2 receptors. It is somewhat selective for the CB2 subtype, with affinity at this subtype approximately 5x the affinity at CB1.
[1] The abbreviation JWH stands for John W. Huffman, one of the inventors of the compound.
On 20 April 2009, JWH-073 was claimed by researchers at the
University of Freiburg to have been found in a "fertiliser" product called "Forest Humus", along with another synthetic cannabinoid (C

-
CP 47,497.
[2] These claims were confirmed in July 2009, when tests of Spice product seized after the legal ban on
JWH-018 had gone into effect in Germany, were shown to contain the unregulated compound JWH-073 instead.
[3]
JWH-081 is an
analgesic chemical from the aminoalkylindole family, which acts as a
cannabinoid agonist at both the CB1 and CB2 receptors.
[1] It is fairly selective for the CB1 subtype, with affinity at this subtype approximately 10x the affinity at CB2.
[2]
CP 47,497 is a drug which is a
cannabinoid receptor agonist, developed by
Pfizer in the 1980s.
[1] It has
analgesic effects and is used in scientific research. It is a potent CB1 agonist with a
Kd of 2.1 nM.
[2][3][4]
On the 19th of January 2009, the
University of Freiburg in Germany announced that an
analog of CP 47,497 is the main active ingredient in the
herbal "incense" product
Spice, specifically the 1,1-dimethyloctyl
homologue of CP 47,497.
[5][6][7] The 1,1-dimethyloctyl homologue of CP 47,497 is in fact several times more potent than the parent compound,
[8] which is somewhat unexpected as the 1,1-dimethylheptyl is the most potent substituent in classical cannabinoid compounds such as
HU-210.
[9]