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| Formula | C24H28N4O2 |
| Molar mass | 404.514 g·mol−1 |
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PX-3 (also known as APP-CHMINACA) is an indazole-based synthetic cannabinoid. It is a potent agonist of the CB1 receptor with a binding affinity of Ki = 47.6 nM and was originally developed by Pfizer in 2009 as an analgesic medication.[1][2][3][4]
The acronym 'APP' signifies the 'amino', 'phenyl' and 'propanone' elements of the structure. Three related compounds, PX-1 (5F-APP-PICA, SRF-30), PX-2 (5F-APP-PINACA, FU-PX) and APP-FUBINACA were reported by the EMCDDA in late 2014.[5][6]
Sweden's public health agency suggested to classify APP-CHMINACA as hazardous substance on June 1, 2015.[7]