Marquis reagent — Methylone
White · Yellow
bk-MDMA (Methylone)
Source text (English): bright yellow
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.
methylone · bk-MDMA (Methylone) · bk-MDMA

White · Yellow
bk-MDMA (Methylone)
Source text (English): bright yellow
White · Yellow · Orange
bk-MDMA (Methylone)
Source text (English): Yellow -> Orange
Yellow · Brown
bk-MDMA (Methylone)
Source text (English): yellow/green > brown
White · Yellow · Black
bk-MDMA (Methylone)
Source text (English): yellow > black
White · Yellow
bk-MDMA (Methylone)
Source text (English): bright yellow
Orange · Black · Brown
bk-MDMA (Methylone)
Source text (English): grey / brown
Orange · Blue
bk-MDMA (Methylone)
Source text (English): faint blue
No reaction
bk-MDMA (Methylone)
Source text (English): no color change
No reaction
bk-MDMA (Methylone)
Source text (English): no color change
No reaction
bk-MDMA (Methylone)
Source text (English): no color change
Pink · Green
bk-MDMA (Methylone)
Source text (English): pale green
White · Purple
bk-MDMA (Methylone)
Source text (English): dark violet after 5 minutes
Brown · Yellow
bk-MDMA (Methylone)
Source text (English): yellow
No reaction
bk-MDMA (Methylone)
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.