Marquis reagent — 4-Hydroxymethcathinone
White · Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brownish
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-hydroxymethcathinone · 4-HO-MEC (4-Hydroxymethcathinone) · 4-HO-MEC

White · Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brownish
White · Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brownish
Yellow · Green
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): green
White · Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brown
White · Brown
4-HO-MEC (4-Hydroxymethcathinone)
Source text (English): brownish
No reaction
4-HO-MEC (4-Hydroxymethcathinone)
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.