Simple and rapid color screening tests for flunitrazepam (Rohypnol)
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Updated: Oct 24, 2026

Color Spot Test As a Presumptive Tool for the Rapid Detection of Synthetic Cathinones
Published on: February 5, 2018
1Drug Enforcement Administration, Special Testing and Research Laboratory, McLean, VA 22102-3494, USA.
Abstract:
Three new color/screening tests for flunitrazepam (Rohypnol) are reported. The two-step tests are simple, sensitive, highly specific, and effective for both cut and uncut flunitrazepam and standard over-the-counter preparations of flunitrazepam (i.e., Rohypnol tablets).
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