this is what i got from Mat:
For research purposes, you would want to get the same amount of active
in the liquid as the tablets. Remember that each ml of the oral
will have 200mcg of clen, which is a lot. 1/2ml will have 100 and
will have 50mcg and so on. Most choose to start at about 50mcg for
their research and go from there. For your reference, here is a good
article, but the dosing is a bit low when starting off, but you get the
idea (for research only, of course).