dye|World dye variety

Name:C.I.Direct Brown 39,C.I.35060

Molecular Structure: Multi-azo class

C.I.Direct Brown 39,C.I.35060,CAS 6473-06-9,934.91,C44H32N12Na2O6S2

Molecular Formula:C₄₄H₃₂N₁₂Na₂O₆S₂

Molecular Weight: 934.91

CAS Registry Number:6473-06-9

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, and 4-Hydroxynaphthalene-1-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a single accidentally nitrogen compounds (2 Moore) coupled.

Properties and Applications:  red light brown. Soluble in water for red light brown. The strong sulfuric acid to red light purple, dilute after brown precipitation. The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution without change.

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