dye|World dye variety

Name:C.I.Direct Red 110,C.I.28370

Molecular Structure: Double azo class

C.I.Direct Red 110,C.I.28370,CAS 5852-18-6,830.58,C32H23Cl2N7Na2O9S2,Sirius Supra Red 5B

Molecular Formula:C₃₂H₂₃Cl₂N₇Na₂O₉S₂

Molecular Weight: 830.58

CAS Registry Number:5852-18-6

Manufacturing Methods :  2-Amino-3,5-dichlorobenzenesulfonic acid diazo, and m-Toluidine
coupling, and then a sulfonic acid hydrolysis off base, again diazo, and 7-(3-(4-Acetamidophenyl)ureido)-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications:  blue-ray red. Soluble in water for product red to blue light red, soluble in ethanol in red. In the strong sulfuric acid as dark blue, diluted red for blue-ray. The dye solution to join strong hydrochloric acid have purplish red precipitate; Add sodium hydroxide solution have strong purplish red precipitate.

List of Suppliers:

Sirius Supra Red 5B( Bayer Group )