N,N'-disubstituted nitro-para-phenylenediamines, and dyeing comp

N-alkylamino secondary para-phenylenediamine, composition...

N-alkyleheteroaryl secondary para-phenylenediamine and...

N-alkylhydroxylated secondary para-phenylenediamine...

N-aryl-4,5-diaminopyrazoles and dyes containing said compounds

N-benzyl-m-phenylenediamine derivatives and dyes containing...

N-benzyl-p-phenylenediamine-derivatives containing coloring...

N-heteroarylmethyl-m-phenylenediamine derivatives-containing...

N-heteroarylmethyl-p-phenylenediamine derivatives as well as...

N-heteroarylmethyl-p-phnylendiamine derivatives and...

N.sup.1 trifluoroalkyl substituted 2-nitro-p-phenylenediamine dy

Nacreous colorant for keratin fibers

Naphthalene cationic coupler for oxidation dyeing of keratin...

Naphthalene derivatives and colorants for keratin fibers...

Neutral and cationic naphthalene and colorants for keratin...

New chloro-meta-phenylenediamines, their use as couplers in the

New substituted metaaminophenols, a process for their preparatio

New tetra-aminopyrimidine derivatives and their use in hair-dyei

Nitrated coupler compounds useful in direct dyeing and simultane

Nitrated coupler compounds useful in direct dyeing and simultane