1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-6-[[4'-[[2-(acetylamino)-4-amino-5-methylphenyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-, disodium salt

CAS NO.：6473-30-9
Empirical Formula: C35H31N7Na2O11S2
Molecular Weight: 835.77048
EINECS: 613-678-3

What is 1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-6-[[4'-[[2-(acetylamino)-4-amino-5-methylphenyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-, disodium salt?

Preparation

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

Safety information for 1,7-Naphthalenedisulfonic acid, 4-(acetylamino)-6-[[4'-[[2-(acetylamino)-4-amino-5-methylphenyl]azo]-3,3'-dimethoxy[1,1'-biphenyl]-4-yl]azo]-5-hydroxy-, disodium salt

New Products

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