CBD 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.

CBD

cbd · CBD (isolate) · isolate

Reagent colour reaction chart for CBD
Documented reagent colour reactions for CBD.

Marquis reagent — CBD

White · Brown · Black

CBD (isolate)

Source text (English): dark brown > black

Mecke reagent — CBD

White · Brown · Black

CBD (isolate)

Source text (English): dark brown > black

Mandelin reagent — CBD

Yellow · Brown · Black

CBD (isolate)

Source text (English): dark brown > black

Liebermann reagent — CBD

White · Orange · Brown

CBD (isolate)

Source text (English): orange > brown

Froehde reagent — CBD

White · Brown

CBD (isolate)

Source text (English): brown

Robadope reagent — CBD

No reaction

CBD (isolate)

Source text (English): no pink color change

Simon's reagent — CBD

No reaction

CBD (isolate)

Source text (English): no blue color change

Ehrlich reagent — CBD

White · Purple

CBD (isolate)

Source text (English): purple

Hofmann reagent — CBD

White · Orange

CBD (isolate)

Source text (English): orange

Morris reagent — CBD

Pink · Green

CBD (isolate)

Source text (English): pale green

Zimmermann reagent — CBD

White · Purple

CBD (isolate)

Source text (English): fast purple

Cannabis (4-AP) reagent — CBD

White · Pink · Purple

CBD (isolate)

Source text (English): pink / purple

CBD
Source text (English): Reagents Cannabis (4-AP), Zimmermann
CBD
Source text (English): Reagent Cannabis (4-AP). No blue color change indicates sample is not THC dominant.
CBD
Source text (English): Reagent Cannabis (4-AP). CBD purple, THC blue.
CBD
Source text (English): Reagent Cannabis (4-AP) with CBD isomerization results. CBD purple, THC blue.
CBD
Source text (English): Reagent Cannabis (4-AP)
CBD
Source text (English): Reagent Cannabis (4-AP). THC blue, CBD purple.
CBD
Source text (English): Reagent Cannabis (4-AP) showing blue for THC, purple for CBD (common for synthetic cannabinoids)
CBD
Source text (English): Reagent Cannabis (4-AP) showing blue for THC, purple for CBD (common for synthetic cannabinoids)

Colour swatches are illustrative, not measured colour values or reaction timing. Original reference observations are preserved below each result.

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