4-Aminoazobenzene-3,4'-disulfonic acid

4-Aminoazobenzene-3,4'-disulfonic acid Basic information
Product Name:4-Aminoazobenzene-3,4'-disulfonic acid
Synonyms:PARA AMINO AZOBENZENE 3,4 DISULFONIC ACID;P-AMINOAZOBENZENE-3,4'-DISULFONIC ACID;2-amino-5-((4-sulfophenyl)azo)-benzenesulfonicaci;2-amino-5-[(4-sulfophenyl)azo]-benzenesulfonicaci;4-(4-amino-3-sulfophenylazo)-benzenesulfonicaci;2-amino-5-(4-sulfophenyl)diazenylbenzenesulfonic acid;2-azanyl-5-(4-sulfophenyl)diazenyl-benzenesulfonic acid;4-amino-3,4’-disulfoazobenzene
CAS:101-50-8
MF:C12H11N3O6S2
MW:357.36
EINECS:202-947-7
Product Categories:Intermediates of Dyes and Pigments
Mol File:101-50-8.mol
4-Aminoazobenzene-3,4'-disulfonic acid Structure
4-Aminoazobenzene-3,4'-disulfonic acid Chemical Properties
Boiling point 611.61℃[at 101 325 Pa]
density 1.5733 (rough estimate)
vapor pressure 0Pa at 25℃
refractive index 1.6390 (estimate)
pka-1.13±0.50(Predicted)
Water Solubility 1000g/L at 25℃
LogP-0.91 at 25℃
CAS DataBase Reference101-50-8(CAS DataBase Reference)
EPA Substance Registry SystemBenzenesulfonic acid, 2-amino-5-[(4-sulfophenyl)azo]- (101-50-8)
Safety Information
MSDS Information
4-Aminoazobenzene-3,4'-disulfonic acid Usage And Synthesis
Uses4-Aminoazobenzene-3,4''-disulfonic Acid is used in the synthesis of novel acid dyes with a coumarin moiety.
DefinitionChEBI: A member of the class of azobenzenes that is azobenzene in which one of the phenyl groups is substituted at the para position by a sulfo group, while the other is substituted at a meta position by a sulfo group and at the pa a position by an amino group. The disodium salt is the biological stain 'fast yellow'.
Flammability and ExplosibilityNonflammable
4-Aminoazobenzene-3,4'-disulfonic acid Preparation Products And Raw materials
2,5-DI(4-NITROPHENYL)-3-(4-(4-SULFOPHENYLAZO)-2-SULFOPHENYL)-2H-TETRAZOLIUM SODIUM SALT 2-(4-NITROPHENYL)-5-(2-SULFOPHENYL)-3-(4-(4-SULFOPHENYLAZO)-2-SULFOPHENYL)-2H-TETRAZOLIUM DISODIUM 4-AMINOAZOBENZENE 4-AMINOAZOBENZENE-3,4'-DISULFONIC ACID,MONOSODIUM SALT Sulfanilic acid ACID RED 66 DIRECT BROWN 106 sodium hydrogen 4-aminoazobenzene-3,4'-disulphonate DIRECT RED 80 3,4'-DIAMINODIPHENYLMETHANE 4-Amino-benzenesulfonic acid monosodium salt Benzenesulfonic acid 2-(4-NITROPHENYL)-5-PHENYL-3-(4-(4-SULFOPHENYLAZO)-2-SULFOPHENYL)-2H-TETRAZOLIUM SODIUM SALT 6-Aminocaproic acid 4-Aminoazobenzene-3,4'-disulfonic acid Ponceau S 2-Aminoazobenzene-4,4'-disulfonic acid disodium salt CI 13015

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