Autoclavable Freeze Proof Vials Biologix Cryovials With Caps, 2.0ML Cryogenic Vials, External, 50/Bag 2ml Sterile Cryovials Tested to withstand centrifugation of 23,000 RCF in a fully supported rotor. cryovials are made of medical grade polypropylene. Sample tubes can be repeatedly frozen and thawed. Sterile vials have self-standing bottoms, universal screw threads, and writing area and black graduation mark. Vials are autoclavable to 121℃ and freezable to -86℃. Tubes fit most common rotors and standard 2-inch boxes. Plastic cryogenic vials are perfect for lab sample storage [FEATURE] These sterile vials have self-standing bottoms, universal screw threads, and writing area and black graduation mark United Scientific P60110 Cryo Vial, Internal Thread, 1.8 mL Round Base, case /500 We will help you solve the problem as soon as possible. [WORKING TEMPERATURE] Vials are autoclavable to 121℃ and freezable to -86℃ Biologix 2.0ml Cryovials,500 Pcs Brown Lab Sample Vials with Screw Caps Small Vials for Low Temperature Storage Tubes These sterile vials are made of strong, medical-grade polypropylene. Last but not least, the small vials are stable from -86ºC to 121ºC (Autoclavable, freeze proof and boil proof). The plastic vials have the features of chemically resistant to alcohols and mild organic solvents.