JWH-019 is an analgesic chemical from the naphthoylindole family that acts as a cannabinoid agonist at both the CB1 and CB2 receptors. It is the N1-hexyl homologue of the more common synthetic cannabinoid compound JWH-018. Unlike the butyl homologue JWH-073, which is several times weaker than JWH-018, the hexyl homologue is only slightly less potent, although extending the chain one carbon longer to the heptyl homologue JWH-020 results in dramatic loss of activity. These results show that the optimum side chain length for CB1 binding in the naphthoylindole series is the five-carbon pentyl chain, shorter than in the classical cannabinoids where a seven-carbon heptyl chain produces the most potent compounds. This difference is thought to reflect a slightly different binding conformation adopted by the naphthoylindole compounds as compared to the classical cannabinoids, and may be useful in characterising the active site of the CB1 and CB2 receptors.
In Poland, JWH-019 is I-N (Poland)
JWH-019 is illegal in Sweden
JWH-019 is Class B in the United Kingdom.
JWH-019 is not controlled federally in the United States, however if intended for human consumption, possession or sales could possibly be prosecuted under the Federal Analog Act.
JWH-019 is illegal in Virginia.