1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt

CAS NO.：5850-50-0
Empirical Formula: C16H10N2Na2O8S2
Molecular Weight: 468.36874
EINECS: 611-670-4

What is 1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt?

Preparation

2-Aminobenzenesulfonic acid diazo, and 4,5Dihydroxynaphthalene-1-sulfonic acid?coupling.

Properties and Applications

blue-ray red. Soluble in water for wine red, hardly soluble in alcohol. The strong sulfuric acid for dark purple, diluted red wine. In water solution to join strong hydrochloric acid for the red; Add sodium hydroxide into wine red to the deep red.

Standard	Light Fastness	Soaping		Persperation Fastness	Oxygen bleaching		Fastness to seawater
Standard	Light Fastness	Fading	Stain	Persperation Fastness	Fading	Stain	Fading	Stain
ISO	4	2	3-4	2-3	1		3

Safety information for 1-Naphthalenesulfonic acid, 4,5-dihydroxy-3-[(4-sulfophenyl)azo]-, disodium salt

New Products

Tert-butyl bis(2-chloroethyl)carbamate (S)-3-Aminobutanenitrile hydrochloride N-Boc-D-alaninol N-BOC-D/L-ALANINOL 3-(2,4-Dimethoxybenzyl)dihydropyrimidine-2,4(1H,3H)-dione 6-Bromo-3-iodo-1-methyl-1H-indazole N-octanoyl benzotriazole 3,4-Dibenzyloxybenzaldehyde 4-Hydrazinobenzoic acid Electrolytic Iron Powder 1,1’-CARBONYLDIIMIDAZOLE R-2-BENZYLOXY PROPIONIC ACID 4-HYDROXY BENZYL ALCOHOL 1,1’-CARBONYLDI (1,2-4 TRIAZOLE) S-2-CHLORO PROPIONIC ACID (2-Hydroxyphenyl)acetonitrile 4-Bromopyrazole 5-BROMO-2CYANO PYRIDINE 5,6-Dimethoxyindanone 5-broMo-2-chloro-N-cyclopentylpyriMidin-4-aMine N-Boc-L-proline methyl ester 2-(BOC-Amino)4-picoline 1-(4-Methylphenylsulfonyl)-1H-1,2,3-benzotriazole 1-(2-Chlorobenzyl)-4-nitro-1H-pyrazole

Related products of tetrahydrofuran

Acid Red 315

ACID RED 299

C.I. Acid Red 316(8CI,9CI)

Acid Red 308

Acid Red 30

sodium 5-[2-[5-chloro-2-(4-methylphenyl)sulfonyl-phenyl]hydrazinyl]-6-imino-4-oxo-naphthalene-2-sulfonate

4-Hydroxy-3-(1-naphthalenylazo)-2,7-naphthalenedisulfonic acid disodium salt

CHROMOTROPE 2R