The aggregation of naproxen in acetonitrile and tetrahydrofuran studied by the ultrasonic, volumetric and viscometric methods

Naproxen belongs to the class of non-steroidal anti-inflammatory drugs known as profens. In the low-molecular mass organic solvents, the chiral molecules of profens undergo spontaneous conversion, probably the oscillatory one, as was suggested in our previous works. The aggregation favours oscillatory reactions that tend to occur in highly ordered liquids.