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2668-05-5

2668-05-5 Structure

2668-05-5 Structure
IdentificationBack Directory
[Name]

(6Z)-4-amino-6-(naphthalen-1-ylhydrazinylidene)-5-oxo-3-(4-sulfophenyl)diazenyl-naphthalene-1-sulfonic acid
[CAS]

2668-05-5
[Synonyms]

C.I.20350
C.I.Acid Black 17
C.I.Acid Black 17:C.I.20350
4-Amino-5-hydroxy-6-(1-naphtylazo)-3-[(4-sulfophenyl)azo]-1-naphthalenesulfonic acid disodium salt
4-amino-6-(naphthalen-1-ylhydrazinylidene)-5-oxo-3-[(4-sulfophenyl)diazenyl]naphthalene-1-sulfonic acid
(6Z)-4-amino-6-(naphthalen-1-ylhydrazinylidene)-5-oxo-3-(4-sulfophenyl)diazenyl-naphthalene-1-sulfonic acid
[Molecular Formula]

C26H20N5NaO7S2
[MOL File]

2668-05-5.mol
[Molecular Weight]

601.58
Hazard InformationBack Directory
[Preparation]

4-Aminobenzenesulfonic acid diazo, in acid conditions and 4-Amino-5-hydroxynaphthalene-1-sulfonic acid coupling, and then Naphthalen-1-amine diazo in alkaline conditions, and single accidentally coupled nitrogen compounds.
[Properties and Applications]

red light black. Soluble in water for dark, slightly soluble in alcohol. The strong sulfuric acid for blue, dilute appears after the granular blue precipitation. In water solution to join hydrochloric acid for blue light green, spare part will precipitate out; Add thick sodium hydroxide solution to blue. Suitable for wool, polyamide fiber dyeing and printing.
Standard Light Fastness Soaping Persperation Fastness Oxygen bleaching Fastness to seawater
Fading Stain Fading Stain Fading Stain
ISO 5-6 3 2-3 2
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