dye|World dye variety

Name:C.I.Direct Blue 124,C.I.27050

Molecular Structure: Double azo class

C.I.Direct Blue 124,C.I.27050,CAS 6262-04-0,665.61,C28H21N5Na2O8S2,Diazamine Pure Blue 6B

Molecular Formula:C₂₈H₂₁N₅Na₂O₈S₂

Molecular Weight: 665.61

CAS Registry Number:6262-04-0

Manufacturing Methods :  5-Amino-8-nitronaphthalene-2-sulfonic acid diazo, and 2-Amino-4-methylanisole coupling, again diazotization and 6-Hydroxynaphthalene-2-sulfonic acid coupling, and then will the nitro reduction.

Properties and Applications: dark blue and green light blue. Soluble in water for dark purple, slightly soluble in alcohol. The strong sulfuric acid for purple to blue, orange for diluted. Dye with strong hydrochloric acid solution for dark purple, and then to blue light purple precipitation; Add sodium hydroxide solution for violet, then produce powder blue precipitation.

List of Suppliers:

Diazamine Pure Blue 6B( Francolor Pigments SA )