JWH-176

JWH-176 is a synthetic cannabinoid research compound from the naphthylmethylindene family. Unlike many JWH compounds, it does not contain an indole ring or a carbonyl group. Instead, it has an indene-based hydrocarbon structure designed to examine how hydrogen bonding and aromatic interactions contribute to cannabinoid receptor binding. Laboratory reference data report affinity for the CB₁ receptor, but human effects are not established.

Chemistry and classification

JWH-176 is 1-[(E)-(3-pentyl-1H-inden-1-ylidene)methyl]naphthalene. It contains a pentyl-substituted indene system connected to a naphthalene ring through an exocyclic double bond. The absence of a carbonyl group makes it chemically different from naphthoylindoles such as JWH-018.

JWH-176 was developed as a structural probe in cannabinoid receptor research. Its design was intended to test the role of the carbonyl group and aromatic stacking in the binding of indole-derived cannabinoids (Cayman Chemical JWH-176 reference information).

Pharmacology

Reference data report a CB₁ binding Ki of approximately 26 nM. This demonstrates measurable affinity for the central cannabinoid receptor, although the value is weaker than those reported for several potent naphthoylindoles. The available product documentation describes JWH-176 as a cannabimimetic indene hydrocarbon with high affinity for CB₁ (Cayman Chemical, JWH-176).

A review of synthetic cannabinoid pharmacology includes JWH-176 among naphthylmethylindenes and notes its structural distinction from the more common naphthoylindole group (Pharmacological and toxicological effects of synthetic cannabinoids, 2017).

Reported effects

Reliable human descriptions of JWH-176 are too scarce to establish a characteristic experience. Published research focuses mainly on its chemistry and receptor binding. No controlled human study or well-documented clinical case series establishes its subjective effects, duration or adverse-event profile.

Its CB₁ affinity supports the possibility of cannabinoid-like activity, but it does not justify assigning it the same effects as JWH-018 or other compounds that have been detected in recreational herbal mixtures.

Toxicity and research limitations

No human pharmacokinetic study, metabolism profile or clinical toxicology series specific to JWH-176 was identified in the available literature. Its acute toxic range, dependence potential and long-term effects remain unknown.

JWH-176 is primarily a research ligand. Its inclusion in broad synthetic cannabinoid classifications should not be mistaken for evidence that it has a documented history of widespread recreational use.

Related compounds

JWH-176 is related by structural research context to JWH-175 and other naphthylmethylindene compounds. It is chemically distinct from the indole-based JWH-018 and JWH-073.