ok, made a small amount of prop using this as a solvent.
12% Octyl Salicylate
first 24 hours not much of anything. a little sore maybe by the next night.
48 hours ouch.
72 hours I am still limping. there is a nice knot in my left quad.
on the pluse side (such as it is) it was a very thin inject and painless to inject (at least at first.) you could however taste it for a while after the shot.