Marquis reagent — Race-methorphan
No reaction
Race-methorphan
Source text (English): no color change
Race-methorphan 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.
Race-methorphan
race-methorphan
Mecke reagent — Race-methorphan
White · Yellow · Brown
Race-methorphan
Source text (English): yellow-brown
Froehde reagent — Race-methorphan
No reaction
Race-methorphan
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.