Marquis reagent — 2,3-MDDP
White · Brown
2,3-MDDP
Source text (English): pale brown > colorless
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.
23-mddp

White · Brown
2,3-MDDP
Source text (English): pale brown > colorless
Yellow · Brown
2,3-MDDP
Source text (English): brown
Pink · Blue
2,3-MDDP
Source text (English): light blue
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.