dye|World dye variety

Name:C.I.Direct Green 13,C.I.28470

Molecular Structure: Double azo class

C.I.Direct Green 13,C.I.28470,CAS 5852-21-1,1049.9,C41H27N5Na4O15S4,Benzo Brilliant Fast Green GLS

Molecular Formula:C₄₁H₂₇N₅Na₄O₁₅S₄

Molecular Weight: 1049.9

CAS Registry Number:5852-21-1

Manufacturing Methods : 5-Phenyl-2-amino-benzensulfonic acid diazo, and 5-Amino-7-ehtoxy-2-naphthalenesulfonic acid coupling, product to diazo, and 4-Formamido-5-hydroxynaphthalene-2,7-disulfonic acid coupling (finally coupling is in Pyridine in water).

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

List of Suppliers:

Benzo Brilliant Fast Green GLS( IG Farbenindustrie AG )