dye|World dye variety

Name:C.I.Direct Red 51,C.I.14990

Molecular Structure: Single azo class

C.I.Direct Red 51,C.I.14990,CAS 5858-75-3,627.62,C26H19N3Na2O7S3,Erica B

Molecular Formula:C₂₆H₁₉N₃Na₂O₇S₃

Molecular Weight: 627.62

CAS Registry Number:5858-75-3

Manufacturing Methods : 2-(3-Methyl-4-aminophenyl)-4,6-dimethylbenzothiazole diazo, and 8-Hydroxynaphthalene-1,6-disulfonic acid coupling.

Properties and Applications:  blue light pink. Soluble in water for pink, and adequate soluble in alcohol in red. The strong sulfuric acid to red light purple, for the big red after diluted. The dye solution to join strong hydrochloric acid have red precipitate; Add thick sodium hydroxide solution has the purple precipitation.

List of Suppliers:

Erica B ( Aktiengesellschaft für Anilin-Fabrikation )