不溶于冷水，微溶于热水呈艳红光蓝色，微溶于乙醇呈艳蓝色。遇浓硫酸呈橙红色。其水溶液加氢氧化钠呈紫色。 用于检测电泳后的蛋白条带。 比萘酚蓝黑B（Naphthol Blue Black B）和溴酚（Bromophenol）灵敏5-10倍（ 能检测到胶基质上0.5 μg/cm2 蛋白质)。 application： Brilliant Blue R is used for detection of protein bands following electrophoresis. It is a sensitive stain for protein detection in polyacrylamide gels, typically giving blue bands on a clear background with a sensitivity of 50-100 ng/band. It may be combined with other stains, such as silver stain, to distinguish different types of proteins. It displays metachromasia by appearing pink-red, rather than blue, when binding certain proteins, such as collagen and histone H1.