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Crocein Acid

    Name:
    Crocein Acid
    Detailed information:
    Chemistry name:croceic acid; Bayer's acid; 2-naphthol-8-sulfonic acid
    Chemistry structure:


     
    Derivation:
    Sulfonation of β-naphthol with 94% sulfuric acid at 95 C and recrystallization from a salt.
     
    Use:
    Azo-dye intermediate.
     

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