2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[[4-(4,6-dimethyl-2-benzothiazolyl)-2-methylphenyl]azo]-4-hydroxy-, disodium salt

CAS NO.：6661-44-5
Empirical Formula: C28H22N4Na2O8S3
Molecular Weight: 684.67082
EINECS: 613-963-2

What is 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[[4-(4,6-dimethyl-2-benzothiazolyl)-2-methylphenyl]azo]-4-hydroxy-, disodium salt?

Preparation

2-(3-Methyl-4-aminophenyl)-4,6-dimethylbenzothiazole diazo, and 4-Acetamido-5-hydroxynaphthalene-2,7-disulfonic acid?coupling.

Properties and Applications

blue purple. Soluble in water for red light purple, slightly soluble in ethanol is shallow purple. The strong sulfuric acid in the navy for, for the red light purple diluted. The dye solution to join strong hydrochloric acid wine red precipitate; Add thick sodium hydroxide solution have article red precipitate.

Standard	Acid Resistance	Alkali Resistance	Light Fastness	Soaping		Water
				Fading	Stain	Fading	Stain
AATCC	3	4-5	2	1		1-2

Safety information for 2,7-Naphthalenedisulfonic acid, 5-(acetylamino)-3-[[4-(4,6-dimethyl-2-benzothiazolyl)-2-methylphenyl]azo]-4-hydroxy-, disodium salt

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DIRECT BRILLIANT PINK B

trisodium [mu-[2-[[1-hydroxy-6-[[[[5-hydroxy-6-[(2-hydroxy-5-sulphophenyl)azo]-7-sulpho-2-naphthyl]amino]carbonyl]amino]-3-sulpho-2-naphthyl]azo]benzoato(7-)]]dicuprate(3-)

CHLORAZOL VIOLET N

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

DIRECT RED 89

disodium 5-[[4'-[[7-(acetylamino)-1-hydroxy-3-sulphonato-2-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]salicylate

Cuprate(2-), [μ-[[7,7'-(carbonyldiimino) bis[3-[[5-(aminosulfonyl)-2-hydroxyphenyl]azo ]-4-hydroxy-2-naphthalenesulfonato]](6-)]]di-, disodium

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