82576-77-0

Upstream product

• 25917-89-9 4-amino-3-nitro-6-methylaniline 
• 627-11-2 2-Chloroethyl chloroformate 
• 50893-53-3 carbonochloridic acid 1-chloro-ethyl ester 

Downstream Products

• 82576-75-8 1-amino-3-methyl-4-(2'-hydroxyethyl)amino-6-nitrobenzene 

Relevant academic research and scientific papers

Tinctorial composition for keratin fibres, based on nitrated benzene dyestuffs

A process for dyeing keratin fibres is disclosed which involved applying: (a) at least one dyestuff of the formula: STR1 in which R1 and R2 independently designate hydrogen, amino, alkylamino, --NH--aliphatic--(X)m, dialkylamino or --N--(aliphatic-(X)m)2, R3 designates hydrogen, OH, alkoxy or --O--aliphatic-(X)m "aliphatic" designates an aliphatic radical having 2 to 4 free valencies, m designates an integer from 1 to 3 such that if m=1 X represents OH, Cl, OCH3 or OCH2 CH2 OH, or, if m designates 2 or 3, X designates OH, and R4 designates hydrogen, alkyl or halogen, with the proviso that at least one of R1, R2 and R3 is other than hydrogen, and that, if R1 and R2 are both other than hydrogen, R3 designates hydrogen, (b) at least one dyestuff of the formula: STR2 in which R5 designates hydrogen, amino, aminoalkyl, NH-aliphatic-(X)m, N-(alkyl)2, N-(aliphatic(X)m)2, or NHCH2 CH2 NH2, R6 designates hydrogen, OH, alkoxy, O-aliphatic(X)m or O(CH2)n NH2, R7 designates hydrogen, alkyl or halogen, A designates-Y-(CH2)--n, --OCH2 CHOH--CH2 -- or STR3 where R8 designates hydrogen or methyl, Y designates oxygen or --NH-- and n is an integer from 2 to 4, and m "aliphatic" and X are as defined above, with the proviso that, if Y designates --NH-- and R6 is other than hydrogen, R5 designates hydrogen, and, if Y is an oxygen atom, R6 designates hydrogen, the shade and chromaticity of the color obtained with the dyestuff(s) of formula (I) and the shade and chromaticity of the color obtained with the dyestuff(s) of formula (II) being such that ΔH+ΔC is less than or equal to 4.5

Dyeing compositions based on oxidation dyestuff precursors and on nitro benzene dyestuffs and their use for dyeing keratin fibres

Dyeing compositions are disclosed which comprise at least one oxidation dyestuff precursor in combination with at least one direct dyestuff, in an aqueous vehicle, the direct dyestuff being a nitro derivative of the benzene series having the formula: STR1

Nitro-derivatives of the benzene series and their use in the dyeing of keratin fibres

The invention provides novel nitro-paraphenylenediamine derivatives of the formula: STR1 in which R1 denotes an alkyl group, a monohydroxy- or polyhydroxy-alkyl group or an aminoalkyl group, the amino group of which is optionally monosubstitute