Marquis reagent — JWH-250
White · Brown · Pink · Red
JWH-250
Source text (English): pink > red
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.
jwh-250

White · Brown · Pink · Red
JWH-250
Source text (English): pink > red
White · Black
JWH-250
Source text (English): grey
Yellow · Green · Black
JWH-250
Source text (English): dark green > black
White · Brown
JWH-250
Source text (English): dark brown
White · Green
JWH-250
Source text (English): faint green
No reaction
JWH-250
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.