PX-1 (also known as 5F-APP-PICA and SRF-30) is an indole-based synthetic cannabinoid that has been sold online as a designer drug.
Sweden's public health agency suggested classifying PX-1 as hazardous substance on November 10, 2014.
PX-1 is listed in the Fifth Schedule of the Misuse of Drugs Act (MDA) and therefore illegal in Singapore as of May 2015.