Product Name

  • Name

    M-TOLUIDINE-4-SULFONIC ACID

  • EINECS
  • CAS No. 133-78-8
  • Density 1.431g/cm3
  • Solubility 4.5g/L(20 oC)
  • Melting Point
  • Formula C7H9 N O3 S
  • Boiling Point °Cat760mmHg
  • Molecular Weight 187.219
  • Flash Point °C
  • Transport Information
  • Appearance
  • Safety A severe eye irritant. See also SULFONATES. When heated to decomposition it emits very toxic fumes of NOx and SOx.
  • Risk Codes 36/37/38
  • Molecular Structure Molecular Structure of 133-78-8 (M-TOLUIDINE-4-SULFONIC ACID)
  • Hazard Symbols
  • Synonyms o-Toluenesulfonicacid, 4-amino- (7CI,8CI); 2-Methylsulfanilic acid; 3-Aminotoluene-6-sulfonicacid; 4-Amino-2-methylbenzenesulfonic acid; 4-Amino-o-toluenesulfonic acid;5-Aminotoluene-2-sulfonic acid
  • PSA 88.77000
  • LogP 2.48590

4-Amino-o-toluenesulfonic acid Chemical Properties

Product Name: 4-Amino-o-toluenesulfonic acid (CAS NO.133-78-8)


Molecular Formula: C7H9NO3S
Molecular Weight: 187.22g/mol
Mol File: 133-78-8.mol
EINECS: 205-120-9
Density: 1.431 g/cm3
Surface Tension: 61.7 dyne/cm
XLogP3-AA: 0.4
H-Bond Donor: 2
H-Bond Acceptor: 4
Structure Descriptors of 4-Amino-o-toluenesulfonic acid (CAS NO.133-78-8):
  IUPAC Name: 4-Amino-2-methylbenzenesulfonic acid
  Canonical SMILES: CC1=C(C=CC(=C1)N)S(=O)(=O)O
  InChI: InChI=1S/C7H9NO3S/c1-5-4-6(8)2-3-7(5)12(9,10)11/h2-4H,8H2,1H3,(H,9,10,11) 
  InChIKey: ZDIRCGKEOWZBIM-UHFFFAOYSA-N

4-Amino-o-toluenesulfonic acid 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.: 1972,183.

4-Amino-o-toluenesulfonic acid Safety Profile

A severe eye irritant. See also SULFONATES. When heated to decomposition it emits very toxic fumes of NOx and SOx.
Safety Information of 4-Amino-o-toluenesulfonic acid (CAS NO.133-78-8):
Hazard Codes:
Risk Statements: 36/37/38
36:  Irritating to the eyes 
37:  Irritating to the respiratory system 
38:  Irritating to the skin 
Safety Statements: 26-36
26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice 
36:  Wear suitable protective clothing 

4-Amino-o-toluenesulfonic acid Specification

 4-Amino-o-toluenesulfonic acid , its CAS NO. is 133-78-8, the synonyms are 3-14-00-02210 (Beilstein Handbook Reference) ; BRN 2098723 ; EINECS 205-120-9 ; Kyselina 3-toluidin-6-sulfonova ; 5-Aminotoluene-2-sulphonic acid ; o-Toluenesulfonic acid, 4-amino- .

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