Marquis reagent — Codeine
White · Purple
Codeine (Lean, Purple Drank, Syrup)
Source text (English): dark purple
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.
codeine · Codeine (Lean, Purple Drank, Syrup) · Lean · Purple Drank · Syrup

White · Purple
Codeine (Lean, Purple Drank, Syrup)
Source text (English): dark purple
White · Blue · Green
Codeine (Lean, Purple Drank, Syrup)
Source text (English): dark bluish green
Yellow · Green · Orange · Brown
Codeine (Lean, Purple Drank, Syrup)
Source text (English): dark olive spots
White · Black · Brown
Codeine (Lean, Purple Drank, Syrup)
Source text (English): faint brown / black
White · Yellow
Codeine (Lean, Purple Drank, Syrup)
Source text (English): faint yellow
No reaction
Codeine (Lean, Purple Drank, Syrup)
Source text (English): no pink color change
No reaction
Codeine (Lean, Purple Drank, Syrup)
Source text (English): no blue color change
No reaction
Codeine (Lean, Purple Drank, Syrup)
Source text (English): no color change
No reaction
Codeine (Lean, Purple Drank, Syrup)
Source text (English): no color change
No reaction
Codeine (Lean, Purple Drank, Syrup)
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.