Blood Collection Tube Now available in two sizes: 10 mL and 2 mL Cell-Free DNA BCT is a blood collection tube with a formaldehyde-free preservative stabilizing nucleated blood cells. This unique stabilization prevents the release of genomic DNA, allowing isolation of high-quality cell-free DNA which can be further used for a wide range of downstream applications in clinical research studies, drug discovery and diagnostic assay development. Cell-Free DNA BCT reduces the need for immediate plasma preparation due to its unique stabilization properties. Cell-Free DNA is stable for up to 14 days, while circulating tumor cells are stable for up to 4 days, at room temperature, allowing convenient sample collection, transport and storage. Cell-Free DNA BCT is for Research Use Only. Not for use in diagnostic procedures in the U.S. Cell-Free DNA BCT CE is for Export Only. Not to be sold in the U.S. Paper: Stabilizing reagent prevents cell-free DNA contamination by cellular DNA in plasma during blood sample storage and shipping Click here to see patents that may be applicable to this product.