2 mL capacity with round bottom Unique 1D, 2D barcodes and human readable characters Manufactured from polypropylene to withstand temperatures to -196°C Caps designed for a secure seal and compatible with automatic decapping equipment Locking base Sterile SAL 10⁻⁶ Nonpyrogenic and DNase/RNase-free WARNING: Do not use cryogenic vials or Cryogenic Vial Storage boxes in the liquid phase of liquid nitrogen. Only store in the vapor phase above the liquified gas. Always use appropriate safety equipment when removing vials from cryogenic storage.