Marquis reagent — 4-BA
White · Brown
4-BA (4-Bromoamphetamine)
Source text (English): brownish black
4-BA reagent analysis
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.
4-BA
4-ba · 4-BA (4-Bromoamphetamine) · 4-Bromoamphetamine
Mecke reagent — 4-BA
No reaction
4-BA (4-Bromoamphetamine)
Source text (English): no color change
Mandelin reagent — 4-BA
No reaction
4-BA (4-Bromoamphetamine)
Source text (English): no color change
Liebermann reagent — 4-BA
White · Orange
4-BA (4-Bromoamphetamine)
Source text (English): orange
Froehde reagent — 4-BA
No reaction
4-BA (4-Bromoamphetamine)
Source text (English): no color change
Gallic reagent — 4-BA
No reaction
4-BA (4-Bromoamphetamine)
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.