I had to look up what exactly "spirytus" is, and it turns out that it is a 190 proof alcohol. As far as I know it is illegal in the US. You can get the regular stuff (40 proof) or the speciality strong stuff (80 proof), but nothing higher then that.
Or ask someone to buy it and ship it to you from the US.
In the US this stuff is illegal, but what would you need it for anyways?