4-MPP 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.

4-MPP

4-mpp

Reagent colour reaction chart for 4-MPP
Documented reagent colour reactions for 4-MPP.

Mandelin reagent — 4-MPP

Yellow · Green

4-MPP

Source text (English): pale green

Liebermann reagent — 4-MPP

White · Yellow

4-MPP

Source text (English): pale yellow

Simon's reagent — 4-MPP

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.

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