dye|World dye variety

Name:C.I.Direct Blue 127,C.I.34080

Molecular Structure: trisazo class

C.I.Direct Blue 127,C.I.34080,CAS 6411-51-4,942.24,C37H23ClN7Na3O11S3,Diazo Indigo Blue 4GL

Molecular Formula:C₃₇H₂₃ClN₇Na₃O₁₁S₃

Molecular Weight: 942.24

CAS Registry Number:6411-51-4

Manufacturing Methods :  2′-Methoxy-4′-amino-5′-chlorooxanilic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product to diazo, and 4-Hydroxynaphthalene-2-sulfonic acid coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

Properties and Applications: green light blue. Soluble in water for the navy, slightly soluble in alcohol. The strong sulfuric acid in blue light gray to green light for black, diluted for purple. The dye solution to join strong hydrochloric acid have hidden cyan precipitation; Add sodium hydroxide have dark precipitation.

List of Suppliers:

Diazo Indigo Blue 4GL ( Bayer Group )