disodium 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[[3-methyl-4-[(3-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate

CAS NO.：5979-32-8
Empirical Formula: C30H22N6Na2O8S2
Molecular Weight: 704.64062
EINECS: 2277854

What is disodium 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[[3-methyl-4-[(3-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate?

Preparation

3-Aminobenzenesulfonic acid diazo, and a coupling m-Toluidine , its product to diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling.

Properties and Applications

red to blue light Claret. For bright red is soluble in water, soluble in ethanol for product red. The strong sulfuric acid in blue, diluted red for brown. The dye solution to join strong hydrochloric acid for red light brown; Add thick sodium hydroxide solution for purplish red color, have precipitation

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

Safety information for disodium 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[[3-methyl-4-[(3-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate

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Related products of tetrahydrofuran

2-Naphthalenesulfonic acid, 7-[[[[4-(acetylamino)phenyl]amino]carbonyl]amino]-3-[[4-[(2,4-dichloro-6-sulfophenyl)azo]-3-methylphenyl]azo]-4-hydroxy-, disodium salt

DIRECT RED 111

disodium 7-[(4-aminobenzoyl)amino]-4-hydroxy-3-[[4-[(4-sulphonatophenyl)azo]phenyl]azo]naphthalene-2-sulphonate

trisodium 2-[4-[[6-[[[[4-(acetamido)phenyl]amino]carbonyl]amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]-3-sulphonatophenyl]-6-methylbenzothiazole-7-sulphonate

2-Naphthalenesulfonic acid, 3,3'-[carbonylbis(imino-3,1-phenyleneazo)]bis[7-amino-4-hydroxy-, disodium salt

Naphtho[2,1-d]thiazole-8-sulfonic acid, 2-(4-aminophenyl)-6-hydroxy-7-[(2-methylphenyl)azo]-, monosodium salt

DIRECT RED 122

C.I. Direct Red 112