scarlet red(redirected from Biebrich scarlet red)
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1. the color produced by the longest waves of the visible spectrum, approximately 630 to 750 nm.
2. a dye or stain with this color.
scarlet red an azo dye used as a biological stain for fats.
scar·let red(skar'let red), [C.I. 26905]
An azo dye; a dark, brownish red powder, soluble in oils, fats, and chloroform, but insoluble in water; used in medicine as a vulnerary, in histology to stain fat in tissue sections and basic proteins at high pH, and in immunoelectrophoresis.
an azo dye that has been used to impart color to pharmaceutic preparations.
an azo dye used for demonstrating sex chromatin, basic protein and connective tissue in histology, and as a stimulant to healing in wounds. Called also Biebrich scarlet.