Marquis reagent — 2-FA
White · Yellow · Brown
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): slow light brown
There are more substances than colors, so to increase analysis precision use a kit with multiple reagents. Exact color of a reaction depends on adulteration, quantity, lighting, temperature, exposure to air, storage, as well as reagent quality and degradation. Positive or negative result does not indicate if a substance is safe. No substance is 100% safe.
2-fa · 2-FA (2-fluoroamphetamine, 2-fmp) · 2-fluoroamphetamine · 2-fmp

White · Yellow · Brown
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): slow light brown
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
White · Orange
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): orange
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no blue color change
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
No reaction
2-FA (2-fluoroamphetamine, 2-fmp)
Source text (English): no color change
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.