Marquis reagent — 4Cl-iBF
White · Brown
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): brown
4Cl-iBF 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.
4Cl-iBF
4cl-ibf · 4Cl-iBF (p-Chloro-isobutyrylfentanyl) · p-Chloro-isobutyrylfentanyl
Mecke reagent — 4Cl-iBF
No reaction
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): no color change
Mandelin reagent — 4Cl-iBF
Yellow · Brown
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): brownish
Liebermann reagent — 4Cl-iBF
White · Orange
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): orange
Froehde reagent — 4Cl-iBF
No reaction
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
Source text (English): no color change
Gallic reagent — 4Cl-iBF
No reaction
4Cl-iBF (p-Chloro-isobutyrylfentanyl)
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.