Marquis reagent — Buprenorphine
White · Purple
Buprenorphine
Source text (English): violet or no color change
Buprenorphine 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.
Buprenorphine
buprenorphine
Liebermann reagent — Buprenorphine
White · Black
Buprenorphine
No reaction
Source text (English): black or no color change
Froehde reagent — Buprenorphine
White · Purple
Buprenorphine
Source text (English): slow purple
Scott reagent — Buprenorphine
No reaction
Buprenorphine
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.