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A scarlet red synthetic dye first made in 1878 by a secret process developed by Brooke, Simpson, and Spiller. Ponceau colorants were used to dye Wool and Silk without a Mordant. These azo dyes were formerly used for coloring maraschino cherries prior to being removed from the FDA approved list for food in 1976.

Synonyms and Related Terms

ponceaux; Ponceau 2R; Ponceau SX

Physical and Chemical Properties

Soluble in water. Slightly soluble in alcohols. Insoluble in oils.

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