dye|World dye variety

Name:C.I.Direct Red 119,C.I.19590

Molecular Structure: Single azo class

C.I.Direct Red 119,C.I.19590,CAS 6404-55-3,512.54,C24H17N4NaO4S2,Diazo Geranine B

Molecular Formula:C₂₄H₁₇N₄NaO₄S₂

Molecular Weight: 512.54

CAS Registry Number:6404-55-3

Manufacturing Methods : O-Methylaniline diazo, and 2-(4-Aminophenyl)-6-hydroxynaphtho[2,1-d]thiazole-8-sulfonic acid coupling.

Properties and Applications: blue-ray red. Soluble in water for big red, soluble in ethanol is palm light orange. The strong sulfuric acid for product red, diluted becomes shallow. The dye solution to join strong hydrochloric acid have article red precipitate; Add thick sodium hydroxide solution have orange brown precipitation.

List of Suppliers:

Diazo Geranine B ( Bayer Group )