Zimmermann reagent — Alprazolam
White · Blue
Alprazolam
Source text (English): slow blue / violet
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.
White · Blue
Alprazolam
Source text (English): slow blue / violet


White · Blue · Purple
Clonazolam (Clonitrazolam, c-lam, clam)
Source text (English): blue / purple
Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.