Marquis reagent — Etorphine
White · Black · Blue · Yellow · Brown
Etorphine
Source text (English): blueish-grey > yellowish-brown
Etorphine 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.
Etorphine
etorphine
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.