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Differentiation between Protea SuperBlue Coomassie Stains

Protea’s SuperBlue™ Coomassie stains are an excellent choice for visualizing proteins separated by SDS-PAGE gel electrophoresis. SuperBlue Coomassie Stains, R250 and G250 stains are two chemical forms of a disulfonated triphenylmethane compound that is commonly used as the basis of stains for detection of proteins in gel electrophoresis. The SuperBlue Coomassie Stain, R250 (red-tinted) form lacks two methyl groups that are present in the SuperBlue Coomassie Stain, G250 (green-tinted) form, which is also called colloidal Coomassie dye.

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