Marquis reagent — 4-AcO-DALT
White · Yellow
4-AcO-DALT
Source text (English): light yellow > 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.
4-aco-dalt

White · Yellow
4-AcO-DALT
Source text (English): light yellow > yellow
White · Green · Black
4-AcO-DALT
Source text (English): dark green > black
Yellow · Orange · Green · Black
4-AcO-DALT
Source text (English): orange > dark green > black
White · Yellow · Green · Black
4-AcO-DALT
Source text (English): yellow > green > black
White · Yellow · Green
4-AcO-DALT
Source text (English): yellow > green
No reaction
4-AcO-DALT
Source text (English): no blue color change
White · Purple
4-AcO-DALT
Source text (English): Dark Purple
White · Yellow
4-AcO-DALT
Source text (English): yellow
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.