Reagent result lookup
Compare an observation with a published chart. A possible match is not an identification.
Reagents cannot establish purity, dose or safety. They cannot rule out every other substance. Source: Crew.
Read the limitations first
Choose a reagent and colour above. If your observation is not listed, this tool cannot interpret it.
Source: DanceSafe reagent instructions, Spring 2024, v17. Checked 2026-11-14. This deliberately limited lookup covers selected MDMA/MDA entries only. It does not interpret a whole sample or combine reactions into a diagnosis. Use the instructions and chart supplied with your exact kit.
Read the reference entries without the tool
Marquis
Black: The chart lists a black reaction for MDMA and MDA. This is a possible chart match, not an identification; other substances or mixtures may give similar results.
Simon’s
Blue: The chart lists blue for MDMA. This is not unique to MDMA and does not establish the sample’s identity or contents.
No reaction / muddy gray-green: The chart lists no reaction or muddy gray-green for MDA. This observation does not identify MDA or rule out other substances.
Froehde
Blue-tinted black: The chart lists blue-tinted black for both MDMA and MDA. It cannot distinguish them or establish a sample’s contents.