Basic information Safety Supplier Related

chlorthenoxazine

Basic information Safety Supplier Related

chlorthenoxazine Basic information

Product Name:
chlorthenoxazine
Synonyms:
  • chlorthenoxazine
  • chlorthenoxazin
  • Ap 67
  • Apirazin
  • Ossazone
  • Piroxina
  • Valmorin
  • Valtorin
CAS:
132-89-8
MF:
C12H8ClNO
MW:
217.65102
EINECS:
2050823
Mol File:
132-89-8.mol
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chlorthenoxazine Chemical Properties

Melting point:
146-147° (dec)
Boiling point:
303°C (rough estimate)
Density 
1.2414 (rough estimate)
refractive index 
1.5500 (estimate)
storage temp. 
Store at -20°C
solubility 
Soluble in DMSO
pka
12.70±0.40(Predicted)
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chlorthenoxazine Usage And Synthesis

Originator

Reugaril ,Farber ,Italy ,1966

Definition

ChEBI: Chlorthenoxazine is a benzoxazine.

Manufacturing Process

A mixture of 4 liters chloroform and 1,050 cc ethanol was saturated with dry hydrogen chloride gas at -5°C to +5°C in a vessel having a net volume of 15 liters and provided with a stirring device, reflux cooler, gas feed line, thermometer and dropping funnel. 455 g acrolein which had been precooled to 0°C were added dropwise to the solution over a period of 1 to 2 hours while maintaining the temperature below +5°C and vigorously stirring. 1,070 g salicylamide and 1,080 g glacial acetic acid were added to the resulting solution of beta-chloropropionaldehyde acetal, thereby forming a suspension which was heated to 60°C while stirring. A clear solution was formed which was maintained at 60°C for an additional hour. The solution was allowed to cool to about 40°C and was then washed with water by passing a strong stream of water under the surface of the chloroform and continuously withdrawing the upper phase. When the water had reached a pH of 3-4, the precipitated reaction product was separated by vacuum filtration. The chloroform phase of the filtrate was evaporated under a weak vacuum and the residue was combined with the precipitate first obtained. The combined products were stirred with 2 liters of a 5% sodium hydroxide solution. The raw reaction product was then washed with water, dried and recrystallized from ethanol. The product had the melting point of 146°C to 147°C (decomposition). The yield was 1,260 g, corresponding to 76% of the theoretical yield.

Therapeutic Function

Antipyretic, Analgesic

chlorthenoxazine Supplier

Aikon International Limited
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888-4366503
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