dye|World dye variety

Name:C.I.Direct Brown 63,C.I.35040

Molecular Structure: Multi-azo class

C.I.Direct Brown 63,C.I.35040,CAS 6473-05-8,974.89,C39H29N12Na3O9S3,Toluylene Brown R

Molecular Formula:C₃₉H₂₉N₁₂Na₃O₉S₃

Molecular Weight: 974.89

CAS Registry Number:6473-05-8

Manufacturing Methods :  3,5-Diamino-4-methylbenzenesulfonic acid double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a product (2 Moore) coupled.

Properties and Applications: brown. Soluble in water for orange brown, and adequate soluble in ethanol for yellow light brown. The strong sulfuric acid for sauce red + blue, for orange brown after diluted. The dye solution to join strong hydrochloric acid for orange brown, have precipitation; Add thick sodium hydroxide solution for orange brown.

List of Suppliers:

Toluylene Brown R( Bayer Group )