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Acid Black 234(CAS 157577-99-6)

Acid Black 234

Name:C.I.Acid Black 234,C.I.30027

Molecular Structure: trisazo class

 

C.I.Acid Black 234,C.I.30027,CAS 157577-99-6,860.81,C34H26N10Na2O9S3,Weak Acid Black N-BG,Weak Acid Black NB-G,Acid Black 2BNG,Acid Black N-BG,Acid Black NE

Molecular Formula:C34H26N10Na2O9S3

Molecular Weight: 860.81

CAS Registry Number:157577-99-6

Manufacturing Methods : 4-Amino-N-(4-aminophenyl)benzenesulfonamide double nitriding,sulfonylurea aniline in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acidcoupling, aniline diazo, and the above the products in alkaline conditions coupling, and then Benzene-1,3-diamine coupled.

Properties and Applications:  black. Mainly used for wool, silk, cotton and glue dyeing, also can be used for leather dyeing

 

 

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