Marquis reagent — 2C-C
White · Yellow · Green
2C-C
Source text (English): yellow > green (slow)
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.
2c-c

White · Yellow · Green
2C-C
Source text (English): yellow > green (slow)
White · Yellow · Green · Brown
2C-C
Source text (English): yellow green > brown
Yellow · Green
2C-C
Source text (English): yellow > green (slow)
White · Green · Yellow
2C-C
Source text (English): dark green / yellow
White · Yellow · Green
2C-C
Source text (English): yellow > green (slow)
Orange · Pink · Purple
2C-C
Source text (English): (slow) pink
Orange · Pink · Green
2C-C
Source text (English): greenish black
No reaction
2C-C
Source text (English): no color change
No reaction
2C-C
Source text (English): no color change
No reaction
2C-C
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.