By: Rachel Clark, DanceSafe Contractor An off-white powder in a clear baggie with the design ‘Smoke 8FV’ on it was sold in Chicago, IL as heroin, but actually contains fentanyl, quinine, 6-acetylcodeine, 6-acetylmorphine, and heroin. The sample was submitted from Chicago, IL.  The sample turned light purple (slowly) in the presence of the Marquis reagent, ... Read more