Marquis reagent — bk-MDEA (Ethylone)
White · Yellow
bk-MDEA (Ethylone)
Source text (English): 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.
ethylone · bk-MDEA (Ethylone) · bk-MDEA · Ethylone (bk-MDEA, MDEC) · MDEC

White · Yellow
bk-MDEA (Ethylone)
Source text (English): yellow
White · Yellow
bk-MDEA (Ethylone)
Source text (English): brownish yellow
Yellow · Brown
bk-MDEA (Ethylone)
Source text (English): olive
White · Yellow
bk-MDEA (Ethylone)
Source text (English): brownish yellow
White · Yellow · Green
bk-MDEA (Ethylone)
Source text (English): yellow > green
White · Pink
bk-MDEA (Ethylone)
Source text (English): slow pink
Brown · Yellow
bk-MDEA (Ethylone)
Source text (English): yellow
White · Yellow
Ethylone (bk-MDEA, MDEC)
Source text (English): bright yellow
White · Yellow · Orange
Ethylone (bk-MDEA, MDEC)
Source text (English): yellow ( > brown)
Yellow · Orange · Red · Brown · Yellow
Ethylone (bk-MDEA, MDEC)
Source text (English): short reddish
White · Brown
Ethylone (bk-MDEA, MDEC)
Source text (English): greenish brown
White · Yellow
Ethylone (bk-MDEA, MDEC)
Source text (English): yellow > green
No reaction
Ethylone (bk-MDEA, MDEC)
Source text (English): no pink color change
Orange · Blue
Ethylone (bk-MDEA, MDEC)
Source text (English): blue
No reaction
Ethylone (bk-MDEA, MDEC)
Source text (English): no color change
No reaction
Ethylone (bk-MDEA, MDEC)
Source text (English): no color change
White · Pink
Ethylone (bk-MDEA, MDEC)
Source text (English): slow pink
Yellow · Orange
Ethylone (bk-MDEA, MDEC)
Source text (English): yellow > dark orange
No reaction
Ethylone (bk-MDEA, MDEC)
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.