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

CAS No.
2429-79-0
Chemical Name:
disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate
Synonyms
C.I.22130;DIRECTORANGE8;C.I. Direct Orange 8;Takaoka Direct Orange R;C.I.Direct Orange 8:C.I.22130/22140;disodium 5-[[4'-[(1-amino-4-sulphonato-2-naphthyl)azo][1,1'-biphenyl]-4-yl]azo]salicylate;5-[[4'-[(1-Amino-4-sulfo-2-naphtyl)azo]-1,1'-biphenyl-4-yl]azo]-2-hydroxybenzoic acid disodium salt
CBNumber:
CB1921359
Molecular Formula:
C29H19N5Na2O6S
Molecular Weight:
611.5356
MDL Number:
MFCD00281316
MOL File:
2429-79-0.mol
Last updated:2022-12-21 16:56:50

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

FDA UNII Z7XA8U1Z8N
EPA Substance Registry System C.I. Direct Orange 8, disodium salt (2429-79-0)

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

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
American Custom Chemicals Corporation DYE0001358 PONTAMINE ORANGE R 95.00% 2429-79-0 5MG $497.13 2021-12-16 Buy
Product number Packaging Price Buy
DYE0001358 5MG $497.13 Buy

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

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
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

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

Global( 3)Suppliers
Supplier Tel Email Country ProdList Advantage
Shaanxi DIDU pharmaceutical and Chemical Co., Ltd 17691182729 18161915376 1046@dideu.com China 10010 58
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 2429-79-0