AH 7921 sold online at psychedelicspot.com has a full IUPAC name of 3,4-dichloro-N-[[1-(dimethylamino)cyclohexyl]methyl]-benzamide which belongs to a class of synthetic opioid research chemicals.

AH 7921 might be a potent agonist at μ-opioid receptor.

 CAS: 55154-30-8