dye|World dye variety

Name:C.I.Direct Brown 60,C.I.22325

Molecular Structure: Double azo class

C.I.Direct Brown 60,C.I.22325,CAS 6426-57-9,627.54,C29H19N5Na2O7S,Benzo Chrome Brown 5G

Molecular Formula:C₂₉H₁₉N₅Na₂O₇S

Molecular Weight: 627.54

CAS Registry Number:6426-57-9

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, first coupled with 2-Hydroxybenzoic acid, and then in acetic acid medium and 6-Amino-7-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications: yellow light brown. Moderate soluble in water for yellow brown, slightly soluble in ethanol is palm light yellow to olive. The strong sulfuric acid for blue-ray in black, yellow light brown for diluted. The dye solution to join strong hydrochloric acid for olive brown, have precipitation; Add thick sodium hydroxide solution for orange brown.

List of Suppliers:

Benzo Chrome Brown 5G( Bayer Group )