● Made of medical grade polypropylene; can be repeatedly frozen and thawed

● 2.0ml cryogenic vials are available with either internal or external screw threads

● Internal thread vials’ caps are with o-rings, which will promote more secure sealing

● DNase & RNase free, endotoxin free, foreign DNA free, and heavy metal free

● With side barcode and digital code by Side laser printing, easy for information storage

    Vials without side barcode also available

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

● Suitable for liquid nitrogen freezing (gas phase)

● 88-321X cryogenic vials have been upgraded to 88-621X cryogenic vials. Some 88-321X products are in stock and are being cleared.