dye|World dye variety

Name:C.I.Direct Orange 6,C.I.23365/23375

Molecular Structure: Double azo class

C.I.Direct Orange 6,C.I.23365/23375,CAS 6637-88-3/61814-85-5,618.57/618.57,C28H24N6Na2O6S2/C28H24N6Na2O6S

Molecular Formula:C₂₈H₂₄N₆Na₂O₆S₂/C₂₈H₂₄N₆Na₂O₆S

Molecular Weight: 618.57/618.57

CAS Registry Number:6637-88-3/61814-85-5

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, first and 2,4-Diaminobenzenesulfonic acid coupling, again with 2-Hydroxy-3-methylbenzoic acid coupling (C.I. 23365). 3,3′-Dimethylbenzidine double nitriding, first with 2-Hydroxybenzoic acid coupling, again with 2,4-Diamino-5-methylbenzenesulfonic acid coupling (C.I. 23375)

Properties and Applications: yellow orange. Soluble in water for yellow orange, soluble in ethanol, easily soluble in soluble fiber element, insoluble in other organic solvents. The strong sulfuric acid to red light purple, dilute precipitation after brown; In nitric acid solution for red light purple (not completely dissolved), and then into a brown. Apply to cotton, polyamide fiber dyeing, also suitable for the printing of the fiber, and can be used in leather and paper color. Exhaust dyeing good to very good.

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