Tags: Chemical Compound, Chemical Substance.
Acid red 88 (also named Solid Red A 2-Naphthol Red Toyo roccelline Fast Red A and so on) is a red azo dye. Due to its intense colour it looks almost black when solid. Instead of crystallising it vitrifies when cooled or salted out of the solution. It has a pungent smell similar to that of benzoic acid.
