177080-31-8Relevant articles and documents
Substituted diaminophenols, and hair dyes containing such compounds
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, (2008/06/13)
Compounds of the formula (I) and their salts with inorganic and organic acids, STR1 in which R1 is a hydrogen atom or a trimethylsilyl group, R2, R3, R4, and R5 are, independently of each other, a hydrogen atom, a (C1 -C4) alkyl group, a hydroxy-(C2 -C3) alkyl group, an alkoxy-(C2 -C3) group, an amino-(C2 -C3) group, or a 2,3-dihydroxypropyl group, and in which R1, R2, R3, R4 and R5 are not simultaneously hydrogen atoms, and processes for their preparation and use as hair-coloring agents.