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bromocresol green
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Bromocresol green

Bromocresol green

Bromocresol green


Bromocresol green (BCG) is a dye of the triphenylmethane family (triarylmethane dyes). It is used as a pH indicator in applications such as growth mediums for microorganisms and titrations.
Synonym: 5,5′-Dibromo-o-cresolsulfonphthalein, Bromcresol purple sultone form

Grade:AR Grade

Purity:99% min

CAS Number :76-60-8

EC Number :200-972-8

Molecular Formula:C21H14Br4O5S

Technical Requirements:


Bromocresol green

Appearance Light-yellow Powder
PH Range  3.8 - 5.4, yellow to blue
Ignition Residue (w/%) 0.25% max
Loss on Drying(w/%) 3% max
Solubility in Ethanol Qualified


It is used as a pH indicator and as a tracking dye for DNA agarose gel electrophoresis.
It can be used in its free acid form (light brown solid), or as a sodium salt (dark green solid).
It is also an inhibitor of the prostaglandin E2 transport protein.
Bromocresol Green (BCG) is a pH sensitive triphenylmethane dye useful in a variety of colorimetric detection technologies. BCG is used as a tracking dye for DNA agarose gel electrophoresis, in protein determinations and in charge-transfer complexation processes.
In TLC BCG is used for visualisation of the compounds with functional groups whose pKa is below 5.0.

Packing:25g/bottle or according to your requirement.

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