That is why the "research purposes only" stuff is in a liquid form. It makes dosing easier. You can suspend it in a given amount of liquid (water, propylen glycol, or whatever seems to be a good solvent for given powder). You might want to add some benzyl alcohol to increase shelf life. You could try to use the same principle by adding a powder (maltodextrin for instance) and then weighing into piles and capsuling, but it would not be as acurate of a method.... to each his own I guess.
And to curlycock whatever..... just go play somewhere else... you're not wanted around here.