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Basic Information
CAS No.: 101-50-8
Name: 4-Aminoazobenzene-3,4'-disulfonic acid
Molecular Structure:
Molecular Structure of 101-50-8 (4-Aminoazobenzene-3,4'-disulfonic acid)
Formula: C12H11N3O6S2
Molecular Weight: 357.368
Synonyms: Benzenesulfonicacid, 2-amino-5-[(4-sulfophenyl)azo]- (9CI);Benzenesulfonic acid, 6-amino-3,4'-azodi-(6CI);2-Amino-5-(4-sulfophenylazo)benzenesulfonic acid;2-Sulfo-4-[(4-sulfophenyl)azo]aniline;4-Amino-1,1'-azobenzene-3,4'-disulfonicacid;4-Amino-3,4'-disulfo-1,1'-azobenzene;4-Amino-3,4'-disulfoazobenzene;NSC 57606;
EINECS: 202-947-7
Density: 1.7 g/cm3
Melting Point: 13°C
Boiling Point: 103 °C
Flash Point: 5°C
Solubility: 1000g/L at 25℃
Appearance: white powder
Hazard Symbols: Xi,F
Risk Codes: R11
PSA: 176.24000
LogP: 4.92040
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    C12H11N3O6S2

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Chemistry

IUPAC Name: 4-Aminoazobenzene-3,4'-disulfonic acid
The MF of 4-Aminoazobenzene-3,4'-disulfonic acid (101-50-8) is C12H11N3O6S2.

                            
The MW of 4-Aminoazobenzene-3,4'-disulfonic acid (101-50-8) is 357.36.
Synonyms of 4-Aminoazobenzene-3,4'-disulfonic acid (101-50-8): 4-(4-Amino-3-sulfophenylazo)benzenesulfonic acid ; 4-Amino-3, 4'-disulfoazobenzene ; 4-Aminoazobenzene-3,4'-disulfonic acid ; 4-Aminoazobenzene-3,4'-disulphonic acid
Product Categories: Intermediates of Dyes and Pigments 
Index of Refraction: 1.708 
EINECS: 202-947-7
Density: 1.7 g/ml

Toxicity Data With Reference

1.    

eye-rbt 500 mg/24H SEV

     28ZPAK    Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,192.
2.    

orl-rat LD50:14,800 mg/kg

     28ZPAK    Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku Marhold, J.V.,Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha,Czechoslovakia.: 1972,192.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Mildly toxic by ingestion. A severe eye irritant. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also SULFONATES.