Make your own
Technical Acetone, 95% ethanol (isopropyl alcohol) and a touch of Windex (the REAL windex!). My proportions are 40/40/20.
I also use Kimtech science lab wipes - lint free. After doing the wet clean, leave dry an hour, then do a LIGHT dry wipe with a new set of Kimwipes. Voila, perfectly clean objective!
I did it to my FCT-100 the other day, and it is just about as good as new (for a 28 year old lens!)