dye|World dye variety

Name:C.I.Direct Black 36,C.I.31665

Molecular Structure: trisazo class

C.I.Direct Black 36,C.I.31665,CAS 6360-26-5,720.65,C28H22N10Na2O7S2,Direct Blue Black 3RC,Atul Direct Black NB-ER

Molecular Formula:C₂₈H₂₂N₁₀Na₂O₇S₂

Molecular Weight: 720.65

CAS Registry Number:6360-26-5

Manufacturing Methods : N-(4-aminophenyl)acetamide diazo, in alkaline conditions and 6-Amino-4-hydroxynaphthalene-2-sulfonic acid , and then and hydrolysis products coupled acylation, double again by nitride, and Benzene-1,3-diamine (2 Moore) coupled.

Properties and Applications: green and black. Moderate soluble in water for yellow olive brown, soluble in ethanol. The strong sulfuric acid for violet black, diluted is shallow brown. The dye solution to join strong hydrochloric acid for brown.

List of Suppliers:

Atul Direct Black NB-ER ( Atul Limited )

Direct Blue Black 3RC( Ciba Specialty Chemicals Inc )