Butylone is a synthetic cathinone that is listed as a DEA Schedule I substance. It is commonly used in powder form and ingested orally or by snorting. It has commonly been observed as a mixture with its homology methylone rather than as a pure substance.
Warrick et al., Serotonin Syndrome after Methylone and Butylone Ingestion, J Med Toxicol. March 8(1),65-68, 2012.
Special Testing and Research Laboratatory, Butylone Monograph, 2014.
Overall recommended test:
Platinic chloride reagent with either aqueous or acidic solutions of butylone followed by infrared microspectroscopy of the resulting crystal.