2,4-Diaminophenol

OriginSynthesized from phenylenediamine precursors through chemical modification of aromatic amine compounds. Produced via controlled oxidation and amination reactions of substituted benzene derivatives in industrial synthesis.

On the basis of the data included in this report, the CIR Expert Panel concludes that 2,4-Diaminophenol and 2,4-Diaminophenol Dihydrochloride are safe for use in hair dyes at concentrations up to 0.2% (as the free base). 2009 RE-REVIEW - The Expert Panel noted that 2,4-Diaminophenol Dihydrochloride is now termed 2,4-Diaminophenol Hydrochloride.

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