Bromophenol blue

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== External links ==
== External links ==
* [http://en.wikipedia.org/wiki/Bromophenol_blue Bromophenol blue at the Wikipedia]
* [http://en.wikipedia.org/wiki/Bromophenol_blue Bromophenol blue at the Wikipedia]
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[[Category:Material]] [[Category:Chemical]] [[Category:Agarose gel electrophoresis]]

Revision as of 11:18, 5 May 2009

Bromophenol blue (BPB) is most commonly used as an agarose gel electrophoresis size marker. In a 1% gel it runs at around 500bp but the higher % of the gel the lower it will run. Despite its larger molecular weight of 670g/mol it runs faster than Xylene cyanol (539g/mol) because of its larger negative charge (hydyroxyl groups).

See also

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