CryoKING 2.0ml 500Pcs Polypropylene Cryovials with External Thread and Green Caps Assembled, Tubes with Bottom 2D Barcode for Sample Collection and Storage

Enhanced identification: The sample bottle uses a white writing area, black scale, bottom QR code, one-dimensional barcode, and readable digital three-code on the side to facilitate sample identification. Wide temperature range and CryoKING Combo: Stable operating temperature from -196°C to 121°C, suitable for liquid nitrogen freezing (vapor phase), and can be used with compatible polycarbonate cryogenic boxes to provide a comprehensive sample storage solution plan. Excellent sterilization and purity: Gamma ray sterilization; DNase and RNase-free, endotoxin-free, and foreign DNA-free, ensuring the highest sterility and purity standards for sample storage.