Description: 100% new high quality. Color: As the picture shows Capacity: 5ml Features This bottle is a laboratory dedicated bottle. There laboratory dedicated scale. Very easy to use. Self-standing 5ml medical-grade polypropylene vials with screw closures. The caps and te part of the tubes under the cap are knurled to allow easier grip. Pointed bottoms, with surrounding skirt to allow standing upright. Opaque, but can easily been Te caps have an o-ring seal. Suitable for solid particles, powder, medicine beads, glitter, needles, jewelry and other small items Product Description: Cell cryopreservation is one of the main methods for cell preservation. Using cryopreservation technology to keep cells in -196 C liquid nitrogen for cryopreservation, the cells can be temporarily separated from the growth state to preserve their cell characteristics so that the cells can be resuscitated at the time of need. And the proper preservation of a certain amount of cells can prevent the cells from being contaminated by the cultured cells or other accidents, and play the role of cell conservation. In addition, cell cryopreservation can be used to purchase, deliver, exchange and transport certain cells. When the cells are frozen, the glycerol or two methyl sulfoxide (DMSO), the final concentration of 5%.15%, can reduce the freezing point of the solution. In addition, under the slow freezing condition, the water in the cell is out of the cell and reduces the formation of ice crystals, thus avoiding the cell damage. The method of quot;slow freezing and quick meltingquot; can ensure the survival of cells. The standard freezing rate starts at -1 to -2 C /min, when the temperature is lower than -25 C, it can be accelerated and can be directly injected into liquid nitrogen (-196 C) at -80 C. Material: PP Package: 10Pcs*Cryopreservation tube