dye|World dye variety

Name:C.I.Direct Brown 100,C.I.35800

Molecular Structure: Multi-azo class

C.I.Direct Brown 100,C.I.35800,CAS 10127-06-7,1045.92,C43H30N9Na3O13S3

Molecular Formula:C₄₃H₃₀N₉Na₃O₁₃S₃

Molecular Weight: 1045.92

CAS Registry Number:10127-06-7

Manufacturing Methods : 3-Amino-4-hydroxybenzenesulfonic acid diazo, and Resorcinol coupling, in 30 ℃ with water cut copper sulfate processing, get copper complex as coupling components; 7-Aminonaphthalene-1,3-disulfonic acid diazo, and m-Toluidine coupling, again diazo, and m-Toluidine coupling, and then and 4-Nitrobenzoyl chloride condensation, will the nitro reduction for both the amino nitrogen, and the generation of coupling components coupling.

Properties and Applications: yellow light brown. Soluble in water for orange brown, soluble in ethanol. The strong sulfuric acid in red for brown + purple, for yellow brown after diluted. The dye solution to join strong hydrochloric acid for olive brown, have precipitation; Add thick sodium hydroxide solution for orange brown, have precipitation.

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