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Does GelCode Blue Stain Reagent contain coomassie G-250 or R-250 dye and what is the difference?

April 26, 2017BLUE contain coomassie difference dye gelcode r-250 Reagent stain

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Does GelCode Blue Stain Reagent contain coomassie G-250 or R-250 dye and what is the difference?

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GelCode Blue Stain Reagent contains coomassie G-250 dye. Coomassie G (green)-250 is greenish, stains bright blue, is less soluble and used in colloidal form (stain enters a protein better than the acrylamide, so background is minimized). Coomassie R (red)-250 dye is reddish, stains dark blue and is more soluble, usually resulting in high background.