Mandelin reagent — 4-MPP
Yellow · Green
4-MPP
Source text (English): pale green
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-mpp

Yellow · Green
4-MPP
Source text (English): pale green
White · Yellow
4-MPP
Source text (English): pale yellow
Orange · Red · Purple
4-MPP
Source text (English): red purple
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.