4-MPM 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-MPM

4-mpm · 4-MPM (4-methylphenmetrazine) · 4-methylphenmetrazine

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

Marquis reagent — 4-MPM

White · Green · Blue

4-MPM (4-methylphenmetrazine)

Source text (English): green / blue

Mandelin reagent — 4-MPM

Yellow · Green · Brown

4-MPM (4-methylphenmetrazine)

Source text (English): green > brown

Froehde reagent — 4-MPM

White · Purple

4-MPM (4-methylphenmetrazine)

Source text (English): slow purple

Simon's reagent — 4-MPM

Orange · Blue

4-MPM (4-methylphenmetrazine)

Source text (English): blue spots

Ehrlich reagent — 4-MPM

No reaction

4-MPM (4-methylphenmetrazine)

Source text (English): no color change

Zimmermann reagent — 4-MPM

White · Yellow

4-MPM (4-methylphenmetrazine)

Source text (English): no change / faint yellow

Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.

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