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Sulfaphenazole

  • Name Sulfaphenazole
  • EINECSN/A
  • CAS No. 526-08-9
  • Density1.39g/cm3
  • PSA98.39000
  • LogP3.99030
  • SolubilityN/A
  • Melting Point179-183 °C
  • FormulaC15H14 N4 O2 S
  • Boiling Point541.9°Cat760mmHg
  • Molecular Weight314.368
  • Flash Point281.5°C
  • Transport InformationN/A
  • AppearanceN/A
  • SafetyModerately toxic by subcutaneous and intravenous routes. Mildly toxic by ingestion. See also SULFONATES. When heated to decomposition it emits very toxic fumes of SOx and NOx.
  • Risk CodesN/A
  • Molecular Structure
    Molecular Structure of 526-08-9 (SULFAPHENAZOLE)
  • Hazard SymbolsN/A
  • SynonymsN/A
  • Article Data9

Sulfaphenazole Chemical Properties

IUPAC Name: 4-Amino-N-(2-phenylpyrazol-3-yl)benzenesulfonamide
Synonyms of 3-(p-Aminobenzenesulfonamido)-2-phenylpyrazole (CAS NO: 526-08-9) : 4-Amino-N-(1-phenyl-1H-pyrazol-5-yl)benzenesulfonamide ; Benzenesulfonamide, 4-amino-N-(1-phenyl-1H-pyrazol-5-yl)- ; 1-Phenyl-5-sulfanilamidopyrazole
CAS NO: 526-08-9
Molecular Formula :C15H14N4O2S
Molecular Weight :314.3623
Molecular Structure :
EINECS: 208-384-3
Index of Refraction: 1.684
Surface Tension: 60.9 dyne/cm
Density: 1.39 g/cm3
Flash Point: 281.5 °C
Enthalpy of Vaporization: 81.99 kJ/mol
Boiling Point: 541.9 °C at 760 mmHg
Vapour Pressure: 8.34E-12 mmHg at 25°C
Melting point: 179-183 °C
Storage temp: 2-8°C
Color: 3-(p-Aminobenzenesulfonamido)-2-phenylpyrazole (CAS NO.526-08-9) is white to light yellow.

Sulfaphenazole Uses

 3-(p-Aminobenzenesulfonamido)-2-phenylpyrazole (CAS NO.526-08-9) is a sulfonamide antibacterial.

Sulfaphenazole Production

Raw materials :Etanol-->Sodium hydroxide-->Hydrochloric acid-->Ethyl acetate-->Thionyl chloride-->PETROLEUM ETHER-->Triethyl orthoformate-->Ethyl cyanoacetate-->Chlorosulfonic acid-->Sodium dithionite-->Phenylhydrazine-->5-AMINO-1-PHENYLPYRAZOLE-->4-NITROBENZENESULFONIC ACID-->PHENYLURETHANE

Sulfaphenazole Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 intravenous 470mg/kg (470mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.
mouse LD50 oral 3016mg/kg (3016mg/kg)   Minerva Medica. Vol. 52, Pg. 1789, 1961.
mouse LD50 subcutaneous 660mg/kg (660mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.
rabbit LD50 intravenous 440mg/kg (440mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.
rabbit LD50 subcutaneous 950mg/kg (950mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.
rat LD50 intravenous 525mg/kg (525mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.
rat LD50 subcutaneous 900mg/kg (900mg/kg)   Drugs in Japan Vol. 6, Pg. 387, 1982.

Sulfaphenazole Safety Profile

Moderately toxic by subcutaneous and intravenous routes. Mildly toxic by ingestion. See also SULFONATES. When heated to decomposition it emits very toxic fumes of SOx and NOx.
WGK Germany 2
RTECS DA9520000

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