dye|World dye variety

Name:C.I.Direct Brown 147,C.I.23360

Molecular Structure: Double azo class

C.I.Direct Brown 147,C.I.23360,CAS 8003-80-3,538.55,C26H23N6NaO4S3,Para Brown 3G

Molecular Formula:C₂₆H₂₃N₆NaO₄S₃

Molecular Weight: 538.55

CAS Registry Number:8003-80-3

Manufacturing Methods : 3,3′-Dimethylbenzidine double nitriding, first and 2,4-Diaminobenzenesulfonic acid coupling, again with phenol coupling.

Properties and Applications: dark orange to brown. Moderate soluble in water for orange brown, slightly soluble in ethanol for yellow light brown. In the dark for the strong sulfuric acid, diluted is shallow brown. The dye solution with strong hydrochloric acid have dark brown precipitation; Add thick sodium hydroxide solution for orange brown.

List of Suppliers:

Para Brown 3G( Bayer Group )