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Direct Blue 136

Name:C.I.Direct Blue 136,C.I.24065

Molecular Structure: Double azo class

C.I.Direct Blue 136,C.I.24065,CAS 6473-30-9,835.77,C35H31N7Na2O11S2,Diazo SkyBlue B

C.I.Direct Blue 136,C.I.24065,CAS 6473-30-9,835.77,C35H31N7Na2O11S2,Diazo SkyBlue B

Molecular Formula:C35H31N7Na2O11S2

Molecular Weight: 835.77

CAS Registry Number:6473-30-9

Manufacturing Methods : 3,3′-Dimethoxylbenzidine double nitriding, first and 4-Acetamido-5-hydroxynaphthalene-1,7-disulfonic acid coupling, then with N-(3-amino-4-methylphenyl)acetamide coupling.

Properties and Applications: blue. Soluble in water for red light blue, soluble in ethanol. The strong sulfuric acid as dark blue light in purple, blue after diluted precipitation. Dye with strong hydrochloric acid solution for violet black, precipitation; With strong sodium hydroxide solution for red light brown, have precipitation; Add 10% sodium hydroxide solution for red light purple.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 2 4 4
AATCC 5 5 2 3 5

List of Suppliers:

Diazo SkyBlue B ( Bayer Group )


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