- Hair dye preparations containing nitrodiphenylamine derivative
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This invention encompasses compounds of the formula STR1 wherein R1 and R2 independently are hydrogen, C1-4 alkyl, or C2-4 hydroxyalkyl; one of R3 to R7 is --SO3 H or --COOH; and the remaining of R3 to R7 independently are hydrogen, chlorine, C1-4 alkyl, C1-4 alkoxy, or --NR8 R9, where R8 and R9 independently are hydrogen, C1-4 alkyl, C2-4 alkoxy, or where --NR8 R9 is piperidine, morpholine, piperazine, or pyrrolidone; or a water soluble salt thereof; hair dye preparation containing these compounds, and methods for dyeing hair using such preparation.
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- 4-Fluoro-3-nitro anilines
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Compounds of formula: SPC1 Wherein W is EQU1 or EQU2 in which: (a) R4 and R5 are 5 identical or different and represent hydrogen, monovalent aliphatic, substituted or unsubstituted aryl, aralkyl and cycloalkyl, providing that not more than 1 of R4 or R5 is hydrogen, and (b) R3 is a divalent aliphatic radical.
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