Marquis reagent — AB-001
White · Yellow · Purple
AB-001
Source text (English): yellow > 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.
ab-001

White · Yellow · Purple
AB-001
Source text (English): yellow > violet
White · Yellow · Brown
AB-001
Source text (English): faint yellow > brown
Yellow · Blue · Brown
AB-001
Source text (English): blue brown
White · Brown
AB-001
Source text (English): faint brown
White · Brown
AB-001
Source text (English): faint brown
No reaction
AB-001
Source text (English): no pink color change
No reaction
AB-001
Source text (English): not blue
White · Pink
AB-001
Source text (English): pink
White · Yellow
AB-001
Source text (English): yellow
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.