dye|World dye variety

Name:C.I.Direct Green 50,C.I.34295

Molecular Structure: trisazo class

C.I.Direct Green 50,C.I.34295,CAS 6428-23-5,1086.97,C45H33N10Na3O13S3,Diazo Green 3G

Molecular Formula:C₄₅H₃₃N₁₀Na₃O₁₃S₃

Molecular Weight: 1086.97

CAS Registry Number:6428-23-5

Manufacturing Methods :  4-Acetamido-2-aminobenzenesulfonic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, again diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling, its product to diazo, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then hydrolysis acetyl amino (with aqueous ammonia in Pyridine medium The second step coupled).

Properties and Applications: dark yellow light green. Soluble in water for yellow green, soluble in ethanol. The strong sulfuric acid for olive yellow, diluted for green light. The dye solution to join strong hydrochloric acid have yellow green precipitation; Add thick sodium hydroxide solution for olive green, precipitation.

List of Suppliers:

Diazo Green 3G( IG Farbenindustrie AG )