Paracetamol usp

CAS No.: 103-90-2

Chemical formula: C8H9NO2

Molecular weight: 151.16

EINECS No.: 203-157-5

Melting point: 168-172 °C(lit.)

Boiling point: 273.17°C (rough estimate)

Density: 1,293 g/cm3

Vapor density: 0.008Pa at 25℃

Flash point: 11 °C

Storage conditions: Inert atmosphere,Room Temperature

Solubility: ethanol: soluble0.5M, clear, colorless

Form: Crystals or Crystalline Powder

Color: White

PH value: 5.5-6.5 (H2O, 20℃)(saturated solution)

Odor: odorless

 

Its appearance is white crystal or crystalline powder, melting point 168-172 ℃, odorless, slightly bitter taste, soluble in hot water or ethanol, soluble in acetone, almost insoluble in cold water and petroleum ether. It is stable below 45°C, but if it is exposed to humid air, it will be hydrolyzed into p-aminophenol, and then further oxidized, and the color will gradually turn pink, brown, and finally black, so it should be stored in a cool and dry place.

 

 

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