disodium 1-(3-aminophenyl)-4,5-dihydro-4-[[4-[[[5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl]amino]carbonyl]phenyl]azo]-5-oxo-1H-pyrazole-3-carboxylate

CAS NO.：5852-25-5
Empirical Formula: C33H22N8Na2O8S
Molecular Weight: 736.62112
EINECS: 227-461-2

What is disodium 1-(3-aminophenyl)-4,5-dihydro-4-[[4-[[[5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl]amino]carbonyl]phenyl]azo]-5-oxo-1H-pyrazole-3-carboxylate?

Preparation

aniline diazo, and 7-(4-Aminobenzamido)-4-hydroxynaphthalene-2-sulfonic acid coupling, product to diazo, and 1-(3-Nitrophenyl)-3-carboxy-5-pyrazolone-three, and then will the nitro reduction for amino.

Properties and Applications

bright orange. Soluble in water for palm light orange, orange soluble in alcohol. In the strong sulfuric acid to red, shallow orange for diluted. The dye solution to join strong hydrochloric acid for red orange, precipitation; Add thick sodium hydroxide solution for orange brown.

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

Safety information for disodium 1-(3-aminophenyl)-4,5-dihydro-4-[[4-[[[5-hydroxy-6-(phenylazo)-7-sulphonato-2-naphthyl]amino]carbonyl]phenyl]azo]-5-oxo-1H-pyrazole-3-carboxylate

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Related products of tetrahydrofuran

1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt

Benzenesulfonic acid, 5-[(4-amino-2-hydroxy-5-methylphenyl)azo]-2-[4-[(4-amino-2-hydroxy-5-methylphenyl)azo]phenoxy]-, monosodium salt

5,5'-[[6-[[5-Hydroxy-6-[(2-carboxyphenyl)azo]-7-sulfo-2-naphthalenyl]amino]-1,3,5-triazine-2,4-diyl]bis[imino(4,1-phenylene)azo]]bis[2-hydroxybenzoic acid]

7-Benzoylamino-4-hydroxy-3-[[4-[(2-chloro-6-methyl-4-sodiosulfophenyl)azo]phenyl]azo]naphthalene-2-sulfonic acid sodium salt

ERIE GARNET

Benzoic acid, 5-[[[[3-carboxy-4-[[4,5-dihydro-3-methyl-5-oxo-1-(3-sulfophenyl)-1H-pyrazol-4-yl]azo]phenyl]amino]carbonyl]amino]-2-[[2-oxo-1-[(phenylamino)carbonyl]propyl]azo]-, trisodium salt

CHLORAMINE FAST RED

DIRECTRED11