Basic information Safety Supplier Related

2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACID

Basic information Safety Supplier Related

2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACID Basic information

Product Name:
2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACID
Synonyms:
  • 2-(4-chlorophenyl)-4-thiazoleaceticaci
  • 2-(4-chlorophenyl)-4-thiazoleaceticacid
  • 2-(4-chlorophenyl)-thiazol-4-ylaceticacid
  • 2-(p-chlorophenyl)-4-thiazoleaceticaci
  • 2-(p-chlorophenyl)-4-thiazole-aceticacid
  • 2-(p-chlorophenyl)thiazol-4-ylaceticacid
  • acidep-chlorophenyl-2thiazole-acetique-4
  • acidofenclozico
CAS:
17969-20-9
MF:
C11H8ClNO2S
MW:
253.7
Mol File:
17969-20-9.mol
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2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACID Chemical Properties

Melting point:
150-152°C
Boiling point:
145°C (rough estimate)
Density 
1.2270 (rough estimate)
refractive index 
1.6300 (estimate)
storage temp. 
2-8°C
solubility 
DMSO (Slightly), Methanol (Slightly)
form 
Solid
pka
3.83±0.10(Predicted)
color 
Off-White to Pale Brown
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Safety Information

Hazard Codes 
Xn
Risk Statements 
22
HazardClass 
IRRITANT
Toxicity
LD50 in rats, mice (mg/kg): 850, 1000 orally; 250, 300 i.v. (Hepworth)
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2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACID Usage And Synthesis

Originator

Fenclozic Acid,ZYF Pharm Chemical

Uses

Fenclozic Acid is a a potent antiinflammatory agent with analgesic and antipyretic properties and is a human hepatotoxic drug.

Manufacturing Process

3.7 parts of 2-(4-chlorophenyl)-4-cyanomethylthiazole and 35 parts of 6 N hydrochloric acid are heated under reflux for 2 hours. The solution is cooled by the addition of ice and made alkaline to pH 8 by the addition of 30% aqueous ammonia. The mixture is filtered to remove trace impurities, and an excess of 40% sodium hydroxide solution is then added to the filtrate to cause precipitation of a sodium salt, which is collected by filtration and crystallised from water. There is thus obtained sodium 2-(4-chlorophenyl)thiazol-4- ylacetate, M.P. 13°C (decomposition).
This sodium salt is dissolved in hot water, and the solution is brought to pH 4 by the addition of acetic acid, which causes the precipitation of 2-(4- chlorophenyl)thiazol-4-ylacetic acid. This is collected by filtration, washed with water, and dried in vacuo over phosphorus pentoxide. It has an M.P. 155- 156°C (from ethyl acetate).

Therapeutic Function

Antiinflammatory, Analgesic, Antipyretic

2-[2-(4-CHLOROPHENYL)-1,3-THIAZOL-4-YL]ACETIC ACIDSupplier

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