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101-50-8

101-50-8 Structure

101-50-8 Structure
IdentificationMore
[Name]

4-Aminoazobenzene-3,4'-disulfonic acid
[CAS]

101-50-8
[Synonyms]

2-amino-5-[(4-sulfophenyl)azo]-benzenesulfonic acid
4-[(4-amino-3-sulfophenyl)azo]benzenesulfonic acid
4-AMINO AZOBENZENE 3,4 DISULFONIC ACID
4-AMINOAZOBENZENE-3,4'-DISULFONIC ACID
4-AMINOAZOBENZENE-3,4-DISULPHONIC ACID
P-AMINOAZOBENZENE-3,4'-DISULFONIC ACID
PARA AMINO AZOBENZENE 3,4 DISULFONIC ACID
2-amino-5-((4-sulfophenyl)azo)-benzenesulfonicaci
2-amino-5-[(4-sulfophenyl)azo]-benzenesulfonicaci
4-(4-amino-3-sulfophenylazo)-benzenesulfonicaci
4-amino-3,4’-disulfoazobenzene
4-aminoazobenzene-3,4’-disulfonic
4-amino-azobenzene-4’-disulfonicacid
6-amino-3,4’-azodi-benzenesulfonicaci
kyselina4-aminoazobenzen-3,4’-disulfonova
3,4'-disulfo-4-aminoazobenzene
paraAminoazobenzene Disulfonic Acid
4-Aminoazobenzen-3,4-Disulfonic Acid
2-Amino-5-(p-sulfophenylazo) benzenesulfonic acid
Aminoazobenzene disulfo acid
[EINECS(EC#)]

202-947-7
[Molecular Formula]

C12H11N3O6S2
[MDL Number]

MFCD00065339
[Molecular Weight]

357.36
[MOL File]

101-50-8.mol
Chemical PropertiesBack Directory
[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℃
[CAS DataBase Reference]

101-50-8(CAS DataBase Reference)
[EPA Substance Registry System]

101-50-8(EPA Substance)
Hazard InformationBack Directory
[Uses]

4-Aminoazobenzene-3,4''-disulfonic Acid is used in the synthesis of novel acid dyes with a coumarin moiety.
[Definition]

ChEBI: 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 Explosibility]

Nonflammable
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