HAIR DYEING — Cosmetic Ingredient Function

4-ethylamino-3-nitrobenzoic acid

1H-Pyrazole-4,5-Diamine, 1-(1-Methylethyl)-, Sulfate

1,4-Benzenediamine, N-Methoxyethyl, Hydrochloride

N-methyl-2-nitrobenzene-1,4-diamine

N-(4-Aminophenyl)aniline (CI 76085)

N-Phenylbenzene-p-diamine monohydrochloride (CI 76085)

bis(N-Phenylbenzene-p-diamine) sulphate (CI 76085)

2-Aminophenol (CI 76520)

Phenol, 2-amino-, sulfate (2:1) (salt)

4-Aminophenol (CI 76550)

4-Hydroxyanilinium chloride (CI 76550)

bis[(4-Hydroxyphenyl)ammonium] sulphate (CI 76550)

4-Methylaminophenol

bis(4-Hydroxy-N-methylanilinium) sulphate

Benzene-1,4-diamine

Benzene-1,4-diamine dihydrochloride (CI 76060)

Benzene-1,4-diammonium sulphate (CI 76060)

3H-Pyrazol-3-one, 2,4-dihydro-5-methyl-2-phenyl-

1,3,5-Benzenetriol

2-Amino-4,6-dinitrophenol (CI 76540)

[29H,31H-Phthalocyaninato(2-)-N29,N30,N31,N32] copper (CI 74160)

29H,31H-phthalocyaninato(2-)-N29,N30,N31,N32 copper

Polychloro copper phthalocyanine

3-Hydroxy-N-(o-tolyl)-4-[(2,4,5-trichlorophenyl)azo]naphthalene-2-carboxamide (CI 12370)

2-(3,6-Dihydroxy-2,4,5,7-tetraiodoxanthen-9-yl)benzoic acid, aluminium salt (CI 45430)

Anthra[2,1,9-def:6,5,10-d'e'f']diisoquinoline-1,3,8,10(2H,9H)-tetrone, 2,9-bis(4-methoxyphenyl)-

Pigment Red 4 is classed chemically as a monoazo colour. It conforms to the formula:

Disodium 4-[(5-chloro-4-methyl-2-sulphonatophenyl)azo]-3-hydroxy-2-naphthoate (CI 15865)

N-(5-Chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulphonyl]-2-methoxyphenyl]azo]-3-hydroxynaphthalene-2-carboxamide (CI 12490)

Calcium 3-hydroxy-4-[(4-methyl-2-sulphonatophenyl)azo]-2-naphthoate (CI 15850)

Calcium 3-hydroxy-4-[(1-sulphonato-2-naphthyl)azo]-2-naphthoate (CI 15880)

1,2-Dihydroxyanthraquinone (CI 58000)

Benzo[b]thiophen-3(2H)-one, 4,7-dichloro-2-(4,7-dichloro-3-oxobenzo[b]thien-2(3H)-ylidene)-

Dialuminium tris[2-(2,4,5,7-tetrabromo-6-oxido-3-oxoxanthen-9-yl)benzoate] (CI 45380)

5,12-Dihydroquino[2,3-b]acridine-7,14-dione (CI 73900)

8,18-Dichloro-5,15-diethyl-5,15-dihydrodiindolo[3,2-b:3',2'-m]triphenodioxazine (CI 51319)

2,2'-[(3,3'-dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[3-oxo-N-phenylbutyramide] (CI 21090)

2,2'-[(3,3'-Dichloro[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[N-(2,4-dimethylphenyl)-3-oxobutyramide] (CI 21100)

2-[(4-chloro-2-nitrophenyl)azo]-N-(2-methoxyphenyl)-3-oxobutyramide (CI 11738)

Disodium 3-[(2,4-dimethyl-5-sulphonatophenyl)azo]-4-hydroxynaphthalene-1-sulphonate (14700)

1,2-Benzenediol

1,2,3-Benzenetriol

Resorcinol (CI 76505)

Silver nitrate

Sodium 2-amino-4,6-dinitrophenoxide (CI 76540)

Sodium sulphanilate