Marquis reagent — Melatonin
No reaction
Melatonin
Source text (English): no color change
Melatonin 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.
Melatonin
melatonin
Mecke reagent — Melatonin
No reaction
Melatonin
Source text (English): no color change
Liebermann reagent — Melatonin
White · Brown
Melatonin
Source text (English): light brown
Froehde reagent — Melatonin
No reaction
Melatonin
Source text (English): no color change
Simon's reagent — Melatonin
No reaction
Melatonin
Source text (English): no blue color change
Ehrlich reagent — Melatonin
White · Red · Purple
Melatonin
Source text (English): reddish > purple
Hofmann reagent — Melatonin
White · Yellow · Green
Melatonin
Source text (English): yellow / orange > green
Morris reagent — Melatonin
Pink · Green
Melatonin
Source text (English): pale green
Zimmermann reagent — Melatonin
White · Yellow · Orange
Melatonin
Source text (English): orange
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.