Minisart® RC15 Syringe Filter 17761----------R, 0.2 µm Regenerated Cellulose. Minisart ® RC with hydrophilic regenerated cellulose (RC) is optimized for aqueous liquids and solvents with a pH of 3 - 14 and is stable against DMSO. Type 17761 with a pore size of 0.2 µm can be used for sample preparation and has a male luer slip outlet.