disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate

CAS NO.：2429-79-0
Empirical Formula: C29H19N5Na2O6S
Molecular Weight: 611.5356
MDL number: MFCD00281316
EINECS: 2193874
SAFETY DATA SHEET (SDS)
Update Date: 2025-12-31 14:38:37

What is disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate ?

Preparation

4-(4-Aminophenyl)benzenamine double nitriding, first with 2-Hydroxybenzoic acid coupling, again with 4-Aminonaphthalene-1-sulfonic acid matches. In some brands, Part of the 2-Hydroxybenzoic acid?can be 2-Hydroxy-3-methylbenzoic acid , and can be used other amino acid naphthalene replaced the 4-Aminonaphthalene-1-sulfonic acid.

Properties and Applications

red light orange. Moderate soluble in water (for orange brown) and ethanol (for palm light orange), slightly soluble in soluble fiber element and acetone, insoluble in other organic solvents. The strong sulfuric acid is a deep red in blue, diluted shallow sauce for red, precipitation. The dye solution to join strong hydrochloric acid for red sauce, precipitation; Add thick sodium hydroxide solution for orange, precipitation. Can be used for cotton dyeing and paper shading.

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

Properties of disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate

EPA Substance Registry System

C.I. Direct Orange 8, disodium salt (2429-79-0)

Safety information for disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate

Computed Descriptors for disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate

New Products

Paroxetine Impurity G/Paroxetine Related Compound E 2-Amino-5-bromo-4-(trifluoromethyl)pyridine（RM for Indian lab) 1-aminocyclopentane carbonitrile, HCl H-D-TRP(FOR)-OH HCL 9-Mesityl-10-methylacridinium perchlorate 3-Amino-3-(4-fluorophenyl)propanoic acid Benzyl (3R,4S)-3-(2-bromoacetyl)-4-ethylpyrrolidine-1-carboxylate Bisacodyl Related Compound C/Bisacodyl EP Impurity C Levothyroxine Beta Hydroxy Impurity Candesartan EP Impurity-F/Candesartan Cilexetil USP Related Compound F / Candesartan Cilexetil N2-Ethyl Impurity / 2H-N2-Ethyl Candesartan Cilexetil Atorvastatin amide impurity/Atorvastatin EP Impurity F(Calcium Salt) Sumatriptan Succinate USP Related Compound C N-[(1S)-1-benzyl-2-({(1R)-3-methyl-1-[(1S,2S,6R,8S)-2,9,9-trimethyl-3,5-dioxa-4-boratricyclo[6.1.1.0~2,6~]dec-4-yl]butyl}amino)-2-oxoethyl]-2-pyrazinecarboxamide N-[4-Cyano-3-(trifluoromethyl)phenyl]-3-[(4-fluorophenyl)thio]-2-hydroxy-2-methylpropionamide L-phenylalanine methyl ester hydrochloride 2,2'-(5-Bromomethyl-1,3-phenylene)-di(2-Methylpropionitrile) tri sodium thio phosphate L-phenylalanine, N-(pyrazinyl carbonyl) methyl ester 3-chlorobenzyl cyanide 2-Chloro Benzylcyanide 3,4 Diethoxy Benzylcyanide 4-Bromo Benzylcyanide 3-Hydroxypropionitrile valeronitrile

Related products of tetrahydrofuran

DIRECT ORANGE 72

3,3'-[Carbonylbis[imino(5-methoxy-2-methyl-4,1-phenylene)azo]]bis[5-[(3-aminobenzoyl)amino]-4-methylbenzenesulfonic acid sodium] salt

2-Naphthalenesulfonic acid, 7-[[3-[(3-aminobenzoyl)amino]benzoyl]amino]-4-hydroxy-3-(phenylazo)-, monosodium salt

disodium 1-(3-aminophenyl)-4-[[3-[[3-[[1-(3-aminophenyl)-3-carboxylato-4,5-dihydro-5-oxo-1H-pyrazol-4-yl]azo]benzoyl]amino]phenyl]azo]-4,5-dihydro-5-oxo-1H-pyrazole-3-carboxylate

Direct Orange 82

Direct Orange 9

1H-Pyrazole-3-carboxylic acid, 4,4'-[carbonylbis[imino(2-sulfo-4,1-phenylene)iminocarbonyl-4,1-phenyleneazo]]bis[1-(3-aminophenyl)-4,5-dihydro-5-oxo-, tetrasodium salt

trisodium 7-[[4-[[4-[[6-[(4-aminobenzoyl)amino]-1-hydroxy-3-sulphonato-2-naphthyl]azo]benzoyl]amino]-o-tolyl]azo]naphthalene-1,3-disulphonate