dye|World dye variety

Name:C.I.Direct Violet 80,C.I.25420

Molecular Structure:Double azo class

C.I.Direct Violet 80,C.I.25420,CAS 6858-97-5,1190.98,C51H38N8Na4O17S2,Benzo Fast Copper Violet F3BL

Molecular Formula:C₅₁H₃₈N₈Na₄O₁₇S₂

Molecular Weight: 1190.98

CAS Registry Number:6858-97-5

Manufacturing Methods : 2-(2-Amino-5-nitrophenoxy)acetic acid diazo, and 4-Hydroxy-7-(4-methoxyphenylamino)naphthalene-2-sulfonic acid coupling, and then will the nitro reduction, again will get the amino nitrogen compounds for light accidentally gasification.

Properties and Applications: blue purple to red light blue. Soluble in water for purple, slightly soluble in alcohol. The strong sulfuric acid for purple, diluted for colourful purple. The dye solution to join strong hydrochloric acid for blue; Add thick sodium hydroxide solution for purplish red color.

List of Suppliers:

Benzo Fast Copper Violet F3BL ( Bayer Group )