Marquis reagent — Papaverine
No reaction
Papaverine HCl
Source text (English): no color change
Papaverine 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.
Papaverine
papaverine · Papaverine HCl
Mecke reagent — Papaverine
White · Blue
Papaverine HCl
Source text (English): dark blue
Froehde reagent — Papaverine
White · Green
Papaverine HCl
Source text (English): light green
Ehrlich reagent — Papaverine
No reaction
Papaverine HCl
Source text (English): no color change
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.