Tags: Chemical Compound, Chemical Substance.
Ponceau 6R or Crystal ponceau 6R Crystal scarlet Brilliant crystal scarlet 6R Acid Red 44 or C.I. 16250 is a red azo dye. It is soluble in water and slightly soluble in ethanol. It is used as a food dye with E number E126. It is also used in histology for staining fibrin with the MSB Trichrome stain.
