Efaproxiral is a synthetic small molecule with radiosensitizing activity. Efaproxiral increases oxygen levels in hypoxic tumor tissues by binding non-covalently to the hemoglobin tetramer and decreasing hemoglobin-oxygen binding affinity, increasing tumor oxygenation reduces tumor radioresistance.

131179-95-8

C20H23NO4

341.4

Efaproxyn;RSR 13;RSR-13;RSR13;Efaproxiral

H2O:Insoluble
DMSO:Soluble
Powder: -20°C for 3 years
In solvent: -80°C for 2 years