Key Attributes:

• Made of medical grade polypropylene, autoclavable, and can be repeatedly frozen and thawed

• External thread screw vial caps have no o-ring, which reduces the possibility of contamination

• Fit 9×9 (81-well) standard cryogenic boxes

• Tubes with black graduation printing, tubes top with white writing area, base with six corners, convenient to be operated

• Gamma radiations sterilized RNase and DNase free, endotoxin free and foreign DNA free.

• Working temperature: stable from -196°C to 121°C

• Suitable for liquid nitrogen freezing