CryoVials®

Specially formulated polypropylene

DNase-free, RNAse-free, Pyrogen-free, and DNA-free

Designed for storing biological materials, human or animal cells, at temperatures as low as -196°C. 
Note: Should be used only in the gas phase.  
A silicone seal is in place to ensure a positive seal at any temperature, even the lowest cryogenic temperatures.  For additional identification, tubes can be color-coded using CapInsertTM.  CryoVials® are compatible with most storage systems and are sterilized by gamma irradiation.