V-Vials®; Clear With Screw Cap, Electron Microscopy Sciences. V-Vials are ideal for: Micro Mixing, Homogenization, Centrifugation, Concentration, Extraction, Derivatization, Radiosynthesis, Hybridization, Anaerobic Reactions, and Catalytic Hydrogenation. These vials are made from Wheaton-33 low extractable borosilicate glass and they safeguard