dye|World dye variety

Name:C.I.Direct Blue 82,C.I.34130

Molecular Structure: trisazo class

C.I.Direct Blue 82,C.I.34130,907.79,C37H24N7Na3O11S3,Sirius Blue GR

Molecular Formula:C₃₇H₂₄N₇Na₃O₁₁S₃

Molecular Weight: 907.79

CAS Registry Number:

Manufacturing Methods : 2-Aminobenzene-1,4-disulfonic acid diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and Naphthalen-1-amine coupling, again diazo, in alkaline conditions and 7-Amino-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications:  blue. For blue is soluble in water, soluble in ethanol, insoluble in other organic solvents. The strong sulfuric acid for violet black, diluted for purple. The dye water solution is blue, with strong hydrochloric acid have dark violet blue precipitation; Add thick sodium hydroxide solution have red light purple precipitation.

List of Suppliers:

Sirius Blue GR( IG Farbenindustrie AG )