Bromophenol Blue CAS 115-39-9 BPB 4,4'-(1,1-dioxido-3H-2,1-benzoxathiol-3-ylidene) bis[2,6-dibromophenol] indicator

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Red-violet powder.
pH-indicator for laboratory research.
CAS: 115-39-9
EINECS: 204-086-2
HS: 2934991000
Formula: C19H10Br4O5S

Bromophenol blue is a red -violet powder. colors.
T℃melt. 273℃.
Slightly soluble in water.
Solubility in methanol is 10 mg/ml.
It dissolves well in alkalis.
Soluble in benzene and acetic acid.

Changes color at pH 3.0-4.6.
At pH < 3.0 – yellow.
At pH > 4.6 – blue-violet.
pKa=3,85 at 25 degree.

Apply as:
- indicator for electrophoresis
- marker in gel-electrophoresis
- dye for proteins and nuclein. k-t
- component in cosmetics. industry-sti
- reagent for protein determination
- indicator in bacterial. environments

Stable during storage.
Incompatible with strong oxidizing agents.
Store at room room. temp-re.
Has no smell.

We supply high quality.
Suitable for laboratory use. analysis.
Meets ACS standards.

We can customize according to customer's requirements.

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