dye|World dye variety

Name:C.I.Direct Green 38,C.I.28280

Molecular Structure: Double azo class

C.I.Direct Green 38,C.I.28280,CAS 5893-32-3,969.69,C35H23Cl2N6Na3O12S3,Phenazol Brill Green

Molecular Formula:C₃₅H₂₃Cl₂N₆Na₃O₁₂S₃

Molecular Weight: 969.69

CAS Registry Number:5893-32-3

Manufacturing Methods : 4-Amino-2,5-dichlorobenzenesulfonic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acidcoupling, its product to diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications:  green. Soluble in water for green light blue, slightly soluble in ethanol, easily soluble in soluble fiber element, insoluble in other organic solvents. In the dark for the strong sulfuric acid, diluted to blue, green precipitation; In nitric acid solution for brown, then become yellow. The dye solution to join strong hydrochloric acid blue precipitation; Add thick sodium hydroxide solution for blue precipitation.

List of Suppliers:

Phenazol Brill Green( Classic Dyestuffs Inc )