dye|World dye variety

Name:C.I.Mordant Blue 31,C.I.16675

Molecular Structure: Single azo class

C.I.Mordant Blue 31,C.I.16675,CAS 3270-25-5,586.42,C16H9N2Na3O12S3,Magracrom Blue R

Molecular Formula:C₁₆H₉N₂Na₃O₁₂S₃

Molecular Weight: 586.42

CAS Registry Number:3270-25-5

Manufacturing Methods :  3-Amino-4-hydroxybenzenesulfonic acid diazotization, and 4,5-Dihydroxynaphthalene-2,7-disulfonic acid coupling.

Properties and Applications:  red light navy blue. Soluble in water and ethanol. In concentrated sulfuric acid to purple, dilution after blue light pink; In concentrated nitric acid for dark orange to yellow brown. Dye aqueous solution and sodium hydroxide as yellow solution.

List of Suppliers:

Magracrom Blue R( Laboratory for the Industrial Application of Dyes )