Thermo Fisher, 5000-0020, Nalgene™ General Long-Term Storage Cryogenic Tubes

Nalgene™ general long-term storage cryogenic tubes are externally threaded polypropylene vials for low-temperature storage of biological samples. This configuration has a 2.0 mL nominal volume and is supplied sterile as 500 tubes per case. The self-standing design supports rack handling and benchtop filling, while the external thread keeps the closure interface away from the interior sample area. The tubes are certified to a sterility assurance level of 10⁻⁶ and are DNase/RNase free and noncytotoxic. They are suitable for refrigerated, frozen, and vapor-phase liquid-nitrogen storage down to cryogenic temperatures. For liquid-nitrogen storage, sealed protective systems should be used rather than immersing standard screw-cap tubes directly. The clear polypropylene body supports visual inspection of sample contents. Use appropriate labeling, controlled freezing procedures, and compatible racks for long-term sample-management workflows.