ChemicalBook Product Catalog Dyes and Pigments dye disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate

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

disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate Basic information
Product Name:disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate
Synonyms:disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate;C.I. Direct Orange 8;DIRECTORANGE8;5-[[4'-[(1-Amino-4-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt;C.I.22130;Takaoka Direct Orange R;C.I.Direct Orange 8:C.I.22130/22140
CAS:2429-79-0
MF:C29H19N5Na2O6S
MW:611.5356
EINECS:2193874
Product Categories:
Mol File:2429-79-0.mol
disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate Structure
disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate Chemical Properties
EPA Substance Registry SystemC.I. Direct Orange 8, disodium salt (2429-79-0)
Safety Information
Hazardous Substances Data2429-79-0(Hazardous Substances Data)
MSDS Information
disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate Usage And Synthesis
Preparation4-(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 Applicationsred 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
Fading Stain Fading Stain
ISO 1-2 3 1 2 2
AATCC 1 2 2-3 1 2
disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate Preparation Products And Raw materials
Raw materialsSalicylic acid-->Benzidine-->Naphthionic acid-->3-Methylsalicylic acid
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 7-Benzothiazolesulfonic acid, 2-[4-[4-[[4-[(3-aminobenzoyl)amino]-2-sulfophenyl]azo]-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl]phenyl]-6-methyl-, disodium salt
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