Marquis reagent — Oxymorphone
White · Purple
Oxymorphone
Source text (English): magenta > violet
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.
oxymorphone

White · Purple
Oxymorphone
Source text (English): magenta > violet
White · Yellow · Brown
Oxymorphone
Source text (English): yellow > brown
Yellow · Black
Oxymorphone
Source text (English): black
White · Blue · Purple
Oxymorphone
Source text (English): blue > violet
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.