N,n-diethyl-m-aminophenol (inci)

Author: Prof. Dr. med. Peter Altmeyer

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Last updated on: 29.10.2020

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Synonym(s)

3-(diethylamino)-pheno; 3-diethylaminophenol,99; CAS number: 91-68-9; DEMAP; diethylaminophenol; Diethyl-m-aminophenol; m-(diethylamino)-pheno; m-Hydroxydiethylanilines

Definition
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N,N-diethyl-m-aminophenol is a substance used as a permanent hair dye in cosmetic formulations. Permanent hair dyes cause a permanent coloration of the hair matrix (the hair keratin). N,N-diethyl-m-aminophenol belongs to the colourless oxidation bases in the process of permanent hair colouring of hair keratin. These are easily oxidizable, initially colorless dye bases. Principle: The dye bases migrate into the hair shaft swollen by the alkaline medium. There they are oxidized to complex dyes, whereby they chemically bind with the hair keratin. Only through the oxidation of the (colourless) dye bases by the hydrogen peroxide the actual dye is formed.

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Last updated on: 29.10.2020

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