dye|World dye variety

Name:C.I.Direct Black 170

Molecular Structure: trisazo class

C.I.Direct Black 170,CAS 43151-71-9/86167-73-9,825.74,C35H25N9Na2O9S2,Direct Black E-NB,Direct Black E-NBP Supra,Direct Black GX-NBP

Molecular Formula:C₃₅H₂₅N₉Na₂O₉S₂

Molecular Weight: 825.74

CAS Registry Number:43151-71-9/86167-73-9

Manufacturing Methods : 4-Amino-N-(4-aminophenyl)benzamide double nitriding, in acid conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid coupled, aniline diazo, in alkaline conditions and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid group of neighborhood, again with a coupling 2-Aminophenol coupling.

Properties and Applications: black. Used for cellulose fiber dyeing and printing of, also can be used for leather shading.

List of Suppliers:

Shandong Qing Shun Chemical Co., Ltd.

Tianjin Yadong Group

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