dye|World dye variety

Name:C.I.Direct Brown 13,C.I.35710

Molecular Structure: Multi-azo class

C.I.Direct Brown 13,C.I.35710,CAS 8003-82-5,986.88,C45H29N10Na3O9S2

Molecular Formula:C₄₅H₂₉N₁₀Na₃O₉S₂

Molecular Weight: 986.88

CAS Registry Number:8003-82-5

Manufacturing Methods : 4-(4-Aminophenyl)benzenamine double nitriding, and 2-Hydroxybenzoic acid coupling, and then and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and 5-Aminonaphthalene-2-sulfonic acid and 8-Aminonaphthalene-2-sulfonic acid diazo, and Benzene-1,3-diamine coupled to a product matches.

Properties and Applications: brown. Soluble in water is palm red light, soluble in alcohol. The strong sulfuric acid for purple. The dye solution to join strong hydrochloric acid for red orange solution; With strong sodium hydroxide solution have brown light orange precipitation.

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