COLOUR-PONCEAU 4R
Ponceau 4R is a red dye that provides a dark red shade in applications. The color consists essentially of trisodium 2-hydroxy-1-(4-sulfonato-1- naphthylazo)-6,8-naphthalenedisulfonate, and subsidiary coloring matters together with sodium chloride and/or sodium sulfate as the principal uncolored components.
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