dye|World dye variety

Name:C.I.Direct Blue 123,C.I.26705

Molecular Structure: Double azo class

C.I.Direct Blue 123,C.I.26705,CAS 6406-47-9,665.61,C28H21N5Na2O8S2,Diaminogen Sky Blue N

Molecular Formula:C₂₈H₂₁N₅Na₂O₈S₂

Molecular Weight: 665.61

CAS Registry Number:6406-47-9

Manufacturing Methods : N-(4-amino-2-methoxy-5-methylphenyl)acetamide diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, and 4-Hydroxynaphthalene-1-sulfonic acid coupling, and then hydrolysis acetyl amino.

Properties and Applications: dark blue to navy blue. Soluble in water for navy to violet black, slightly soluble in ethanol to blue. In the strong sulfuric acid as dark blue, for purple diluted. The dye solution to join strong hydrochloric acid has the purple precipitation; With strong sodium hydroxide solution for the navy.

List of Suppliers:

Diaminogen Sky Blue N( Carbotex Consultants )