dye|World dye variety

Name:C.I.Direct Blue 135,C.I.34290

Molecular Structure: trisazo class

C.I.Direct Blue 135,C.I.34290,CAS 6428-22-4,805.75,C36H25N9Na2O7S2

Molecular Formula:C₃₆H₂₅N₉Na₂O₇S₂

Molecular Weight: 805.75

CAS Registry Number:6428-22-4

Manufacturing Methods : 2-(4-Aminophenylamino)-2-oxoacetic acid diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, again diazo, and 5-Aminonaphthalene-2-sulfonic acid coupling, product diazo again, and 3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one coupling, and then 2-(4-Aminophenylamino)-2-oxoacetic acid hydrolysis base.

Properties and Applications:  red light blue and red light navy. Soluble in water for violet black, soluble in ethanol for purple. In the dark for the strong sulfuric acid, diluted the color purple for red light to brown. The dye solution to join strong hydrochloric acid purple brown precipitation; Add thick sodium hydroxide solution for Red sauce, precipitation.

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