ProSignal® Blue Protein Stain is a convenient, ready-to-use protein stain for SDS PAGE gels that compares to InstantBlue® Coomassie protein stain. This stain is environmentally friendly, free of methanol and acetic acid and does not generate any hazardous material. Protein can be visualized within five minutes of staining, and better visualization can be achieved in 30-60 minutes. Highly sensitive to concentrations as low as 10ng. Destaining is not required, and the product can be reused up to three times without obvious loss of sensitivity.