4-aminoazobenzene-3,4'-disulfonic acid

Modify Date: 2025-08-22 06:17:09

4-aminoazobenzene-3,4'-disulfonic acid Structure
4-aminoazobenzene-3,4'-disulfonic acid structure
Common Name 4-aminoazobenzene-3,4'-disulfonic acid
CAS Number 101-50-8 Molecular Weight 357.36200
Density 0,928 g/cm3 Boiling Point 103 °C
Molecular Formula C12H11N3O6S2 Melting Point 13°C
MSDS N/A Flash Point 5°C

 Names

Name 4-aminoazobenzene-3,4'-disulfonic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 0,928 g/cm3
Boiling Point 103 °C
Melting Point 13°C
Molecular Formula C12H11N3O6S2
Molecular Weight 357.36200
Flash Point 5°C
Exact Mass 357.00900
PSA 176.24000
LogP 4.92040
Index of Refraction 1.4146

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
DB5030000
CHEMICAL NAME :
Benzenesulfonic acid, 4-(4-amino-3-sulfophenylazo)-
CAS REGISTRY NUMBER :
101-50-8
BEILSTEIN REFERENCE NO. :
0711063
LAST UPDATED :
199701
DATA ITEMS CITED :
4
MOLECULAR FORMULA :
C12-H11-N3-O6-S2
MOLECULAR WEIGHT :
357.38
WISWESSER LINE NOTATION :
WSQR BZ ENUNR DSWQ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
Standard Draize test
ROUTE OF EXPOSURE :
Administration into the eye
SPECIES OBSERVED :
Rodent - rabbit
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,192,1972 ** ACUTE TOXICITY DATA **
TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
14800 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
28ZPAK "Sbornik Vysledku Toxixologickeho Vysetreni Latek A Pripravku," Marhold, J.V., Institut Pro Vychovu Vedoucicn Pracovniku Chemickeho Prumyclu Praha, Czechoslovakia, 1972 Volume(issue)/page/year: -,192,1972 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4083 No. of Facilities: 25 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 737 (estimated)

 Safety Information

Hazard Codes Xi,F
Risk Phrases R11:Highly Flammable.
Safety Phrases S9-S16-S33
RIDADR 3272
Packaging Group II
Hazard Class 3
HS Code 2927000090

 Synthetic Route

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4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 15, p. 2189 Chemische Berichte, , vol. 22, p. 848 DE4186 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 1, p. 439

~%

4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 15, p. 2189

~%

4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 15, p. 2189

~%

4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 15, p. 2189

~%

4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 15, p. 2189

~%

4-aminoazobenzene-3,4'-disulfonic acid Structure

4-aminoazobenze...

CAS#:101-50-8

Literature: Chemische Berichte, , vol. 22, p. 848 Chemische Berichte, , vol. 33, p. 1366 DE4186 ; Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 1, p. 439 Z.Ang., , vol. 9, p. 691

 Customs

HS Code 2927000090
Summary 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 Synonyms

4-Aminoazobenzene-3,4'-disulphonic acid
6-amino-3,4'-azo-bis-benzenesulfonic acid
Benzenesulfonic acid,6-amino-3,4'-azodi
Kyselina 4-aminoazobenzen-3,4'-disulfonova
2-amino-5-[(4-sulfophenyl)diazenyl]benzenesulfonic acid
4-Aminoazobenzene-3,4'-disulfonic acid
EINECS 202-947-7
(Benzol-sulfonsaeure-(1))-(4 azo 4)-(anilin-sulfonsaeure-(2))
1-(4-sulpho-1-phenylazo)-4-aminobenzene-5-sulphonic acid
4-Amino-azobenzol-disulfonsaeure-(3.4')
6-Amino-3,4'-azo-bis-benzolsulfonsaeure
Azobenzene-3,4'-disulfonic acid,4-amino
4-Amino-3,4'-disulfoazobenzene
4-(4-Amino-3-sulfophenylazo)benzenesulfonic acid
MFCD00065339
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