Basic information Safety Related Supplier
PROPOXYPHENE Structure

PROPOXYPHENE

Chemical Properties

Melting point 75-76°
alpha  D25 +67.3° (c = 0.6 in chloroform)
Boiling point 475.43°C (rough estimate)
Density  1.0751 (rough estimate)
refractive index  1.5614 (estimate)
Flash point 2℃
storage temp.  2-8°C
pka pKa 6.3(50% aq EtOH) (Uncertain)
EPA Substance Registry System Propoxyphene (469-62-5)

Safety Information

Hazard Codes  F,Xn,T
Risk Statements  11-20/21/22-36-52/53-25
Safety Statements  16-26-36/37-61-45-36/37/39
RIDADR  3249
WGK Germany  2
HazardClass  6.1(b)
PackingGroup  III
Hazardous Substances Data 469-62-5(Hazardous Substances Data)
Toxicity An opioid analgesic similar in structure to methadone. It is a much less potent analgesic than morphine and is devoid of antipyretic or anti-inflammatory effects. Its side effects are qualitatively similar to codeine. The clinical indications for propoxyphene are much the same as for aspirin. It is used when the degree of analgesia required is less than that produced by morphine. Recent clinical trials suggest that propoxyphene is no more effective in controlling mild pain than is aspirin. Because they act by different mechanisms, aspirin and propoxyphene have often been given in combination. Recently, there has been a trend away from use of propoxyphene because its weak analgesic properties do not compensate for other problems with its use. Interestingly, the analgesic activity of propoxyphene resides largely in the dextrorotatory isomer, whereas the antitussive effect is produced primarily by the levorotatory isomer. The use of propoxyphene was banned in the United States in November 2010. The oral LD50 in rats is 84 mg/kg.

Usage And Synthesis