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ChemicalBook--->CAS DataBase List--->6222-51-1

6222-51-1

6222-51-1 Structure

6222-51-1 Structure
IdentificationBack Directory
[Name]

2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-7-(phenylamino)-, monosodium salt
[CAS]

6222-51-1
[Synonyms]

Mordant Black 52
C.I.Mordant Black 52:C.I.17520
2-Naphthalenesulfonic acid, 4-hydroxy-3-[(2-hydroxy-5-nitrophenyl)azo]-7-(phenylamino)-, monosodium salt
[EINECS(EC#)]

612-962-4
[Molecular Formula]

C22H15N4NaO7S
[MOL File]

6222-51-1.mol
[Molecular Weight]

502.432
Hazard InformationBack Directory
[Preparation]

2-Amino-4-nitrophenol diazotization, in alkaline condition and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.
[Properties and Applications]

blue black. Soluble in water for magenta, right amount soluble in ethanol for orange brown. In concentrated sulfuric acid for magenta, dilution after red brown. Dye aqueous solution to join concentrated hydrochloric acid have bordeaux red precipitation; Join concentrated sodium hydroxide solution for brown light magenta precipitation.
Standard Ironing Fastness Light Fastness Fulling Persperation Fastness Soaping Water
Alkali Acid
ISO 5 7-8 4-5 4-5 5 5
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