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4'-Aminoazobenzene-4-sulphonic acid

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Name

4'-Aminoazobenzene-4-sulphonic acid

EINECS 203-187-9
CAS No. 104-23-4 Density 1.43 g/cm3
PSA 116.32000 LogP 4.25030
Solubility 513-1320mg/L at 37℃ Melting Point 125-131°C
Formula C12H11N3O3S Boiling Point 477.42℃[at 101 325 Pa]
Molecular Weight 277.304 Flash Point N/A
Transport Information N/A Appearance N/A
Safety Risk Codes N/A
Molecular Structure Molecular Structure of 104-23-4 (4'-Aminoazobenzene-4-sulphonic acid) Hazard Symbols Xi
Synonyms

Benzenesulfonicacid, 4-[(4-aminophenyl)azo]- (9CI);Benzenesulfonic acid,p-(p-aminophenylazo)- (6CI);C.I. Food Yellow 6 (8CI);4-(4-Aminophenylazo)benzenesulfonic acid;4-(4-Sulfophenylazo)aniline;4-(4'-Sulfophenylazo)aniline;4-Amino-1,1'-azobenzene-4'-sulfonic acid;4-Amino-4'-sulfoazobenzene;4-Aminoazobenzene-4'-sulfonic acid;4'-Sulfo-4-aminoazobenzene;NSC 4704;p-[(p-Aminophenyl)azo]benzenesulfonic acid;

Article Data 21

4'-Aminoazobenzene-4-sulphonic acid Synthetic route

26021-90-9

sodium anilinomethanesulfonate

6118-33-8

p-sulfobenzenediazonium chloride

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
Stage #1: sodium anilinomethanesulfonate; p-sulfobenzenediazonium chloride With sodium acetate In water
Stage #2: With sodium hydroxide In water Reflux;
70%
68-34-8

phenyl toluenesulfonamide

305-80-6

4-diazobenzenesulfonic acid

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
und Verseifen des Reaktionsprodukts mit konz.Schwefelsaeure bei 40grad;
23792-61-2

4-(4-nitro-phenylazo)-benzenesulfonic acid

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With ammonium hydrosulphide; ethanol
861869-60-5

4-[4-(2,4,6-trinitro-anilino)-phenylazo]-benzenesulfonic acid

furan-2,3,5(4H)-trione pyridine (1:1)

A

88-89-1

2,4,6-Trinitrophenol

B

104-23-4

4'-aminoazobenzene-4-sulfonic acid

3457-98-5

4-phenylazoaniline hydrochloride

A

101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid at 90 - 100℃;
With sulfuric acid at 90 - 100℃;
305-80-6

4-diazobenzenesulfonic acid

62-53-3

aniline

A

622-37-7

Phenyl azide

B

104-23-4

4'-aminoazobenzene-4-sulfonic acid

C

121-57-3

4-aminobenzene sulfonic acid

305-80-6

4-diazobenzenesulfonic acid

62-53-3

aniline

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With water man laesst 24 Stdn.stehen, filtriert ab und entzieht dem Nied. durch kal. Aether beigemengtes Diazoaminobenzol; die ungeloeste 4'-Amino-azobenzol-sulfonsaeure-(4) bindet man an Ammoniak und reinigt das Salz durch Umkrystallis.;
sulfate of 4-amino-azobenzene

sulfate of 4-amino-azobenzene

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide at 30 - 35℃;
With sulfuric acid; sulfur trioxide at 30 - 35℃;
7664-93-9

sulfuric acid

60-09-3

aniline yellow

A

101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
at 30 - 35℃;
at 30 - 35℃;
sulfate of 4-amino-azobenzene

sulfate of 4-amino-azobenzene

A

101-50-8

4-aminoazobenzene-3,4'-disulfonic acid

B

104-23-4

4'-aminoazobenzene-4-sulfonic acid

Conditions
ConditionsYield
With sulfuric acid; sulfur trioxide at 30 - 35℃;

4'-Aminoazobenzene-4-sulphonic acid Chemical Properties

IUPAC Name: 4-(4-aminophenyl)diazenylbenzenesulfonic acid
The MF of 4'-AMINOAZOBENZENE-4-SULFONIC ACID(104-23-4): C12H11N3O3S
The MW of 4'-AMINOAZOBENZENE-4-SULFONIC ACID(104-23-4): 277.3
EINECS: 203-187-9
Density: 1.43 g/cm3 
Index of Refraction: 1.663 
Categories: Intermediates of Dyes and Pigments;Organics
Synonyms: 4-((4-aminophenyl)azo)-benzenesulfonicaci;4-(4'-sulfophenylazo)aniline;4-(4-sulfophenylazo)aniline;4-[(4-aminophenyl)azo]-benzenesulfonicaci;c.i.foodyellow6;p-((p-aminophenyl)azo)-benzenesulfonicaci;p-(p-aminophenylazo)-benzenesulfonic;SODIUM 4-AMINOAZOBENZENE-4'-SULFONATE
The Structure of 4'-AMINOAZOBENZENE-4-SULFONIC ACID(104-23-4):

4'-Aminoazobenzene-4-sulphonic acid Uses

4'-AMINOAZOBENZENE-4-SULFONIC ACID(104-23-4) is used as dye intermediates.

4'-Aminoazobenzene-4-sulphonic acid Toxicity Data With Reference

1.   

otr-ham:kdy 25 mg/L

   BJCAAI    British Journal of Cancer. 38 (1978),34.

4'-Aminoazobenzene-4-sulphonic acid Consensus Reports

Reported in EPA TSCA Inventory.

4'-Aminoazobenzene-4-sulphonic acid Safety Profile

Mutation data reported. When heated to decomposition it emits toxic vapors of NOx and SOx.
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