Melting point 133-136 °C(lit.)
Boiling point 132 °C / 4mmHg
density 1.1248 (rough estimate)
refractive index 1.5710
Fp 2℃
storage temp. 2-8°C
pka pKa 2.2(H2O) (Uncertain);3.5(aqueous acetone) (Uncertain)
form powder
color White
Phenacetin is mainly used as an antipyretic analgesic, with slow and lasting effects, treating headaches, neuralgia, joint pain, and fever, and weakly resisting rheumatism and inflammation. Because of toxic side effects and the rapid development of similar drugs, however, it is no longer used alone, only as a raw material in combination with other drugs. Commonly combined with aspirin and caffeine to form a less toxic compound aspirin used to treat the common cold. Can make chlorpheniramine cold tablets by adding a small amount of chlorpheniramine to the above compound, used to treat colds with headache, neuralgia, rheumatism, etc. Can be used as a material for organic synthesis or a pharmaceutical intermediate.
China
