JWH-210

JWH-210 is an analgesic chemical from the naphthoylindole family, which acts as a potent cannabinoid agonist at both the CB₁ and CB₂ receptors, with K_i values of 0.46nM at CB₁ and 0.69nM at CB₂. It is one of the most potent 4-substituted naphthoyl derivatives in the naphthoylindole series, having a higher binding affinity (i.e. lower K_i) at CB₁ than both its 4-methyl and 4-n-propyl homologues JWH-122 (CB₁ K_i 0.69nM) and JWH-182 (CB₁ K_i 0.65nM) respectively, and than the 4-methoxy compound JWH-081 (CB₁ K_i 1.2nM). It was discovered by and named after Dr. John W. Huffman.

JWH-210 may be neurotoxic to animals when administered in high doses.

Legal Status

JWH-210 and JWH-122 were banned in Sweden on 1 October 2010 as hazardous goods harmful to health, after being identified as ingredients in "herbal" synthetic cannabis products. The substances JWH-210, JWH-122 and JWH-203 were classified as illegal drugs by the Swedish government as of 1 September 2011.

As of October 2015 JWH-210 is a controlled substance in China.

JWH-176

JWH-176 is an analgesic drug which acts as a cannabinoid receptor agonist. Its binding affinity at the CB₁ receptor is only 26.0nM, making it more potent than THC itself, however JWH-176 is particularly notable in that it is a hydrocarbon containing no heteroatoms. This demonstrates that reasonably high-affinity cannabinoid binding and agonist effects can be produced by compounds with no hydrogen bonding capacity at all, relying merely on Van der Waals interactions to bind to the receptor. It was discovered by, and named after, Dr. John W. Huffman.

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JWH-048

JWH-048 is a selective cannabinoid ligand, with a bindining affinity of K_i = 0.5 ± 0.1 nM for the CB₂ subtype, and more than 22 times selectivity over the CB₁.

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JWH-147

JWH-147 is an analgesic drug used in scientific research, which acts as a cannabinoid agonist at both the CB₁ and CB₂ receptors. It is somewhat selective for the CB₂ subtype, with a Ki of 11.0nM at CB₁ vs 7.1nM at CB₂. It was discovered and named after Dr. John W. Huffman. JWH-147 was banned in Sweden on 1 October 2010 as a hazardous good harmful to health, after being identified as an ingredient in "herbal" synthetic cannabis products.

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