dye|World dye variety

Name:C.I.Direct Blue 34,C.I.32055

Molecular Structure: trisazo class

C.I.Direct Blue 34,C.I.32055,CAS 6797-97-3,1121.97,C46H27N7Na4O14S4,Sirius Blue GG

Molecular Formula:C₄₆H₂₇N₇Na₄O₁₄S₄

Molecular Weight: 1121.97

CAS Registry Number:6797-97-3

Manufacturing Methods : 8-Acetamido-5-aminonaphthalene-2-sulfonic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, again diazo, coupled with the 4-Hydroxynaphthalene-1-sulfonic acid, and then hydrolysis usions amino, again diazo, and 4-Hydroxy-7-(phenylamino)naphthalene-2-sulfonic acid coupling.

Properties and Applications: blue. Soluble in water as dark blue, not soluble in alcohol. The strong sulfuric acid in dark green light for blue, blue for diluted. The dye solution to join strong hydrochloric acid color unchanged, but have precipitation; Add thick sodium hydroxide solution same color, have precipitation.

List of Suppliers:

Sirius Blue GG( Bayer Group )