Cell-Free DNA BCT®

Cell-Free DNA BCT is a blood collection tube that stabilizes cell-free DNA for up to 14 days at 6 °C to 37 °C and CTCs for up to 7 days at 15 °C to 30 °C. Once isolated from stored plasma, the cfDNA and CTCs are suitable for many downstream applications used in clinical research studies, drug discovery and diagnostic assay development.

Cell-Free DNA Blood Collection Tubes

Cell-Free DNA BCT is a direct draw blood collection tube which stabilizes nucleated blood cells. The unique preservative limits the release of genomic DNA, allowing isolation of high-quality cell-free DNA. Cell-Free DNA BCT has also been demonstrated to minimize the degradation of circulating tumor cells (CTCs). By limiting cell lysis, the specialized chemistry provides sample integrity during storage, shipping and handling of blood samples. Cell-free DNA and gDNA are stable for up to 14 days at 6 °C to 37 °C. CTCs are stable for up to 7 days at 15 °C to 30 °C.

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Cell-Free DNA Blood Collection Tubes

For Research Use Only. Not for use in diagnostic procedures in the U.S.
A CE version of these tubes is also available. Cell-Free DNA BCT CE is for Export Only. Not for sale in the U.S.


  • 14-day cfDNA/gDNA sample stability at 6 °C to 37 °C
  • 7-day CTC sample stability at 15 °C to 30 °C
  • Reagent stabilizes cfDNA without impacting downstream assays
  • Available in 10 mL draw


Cell-Free DNA BCT Peer Reviewed Publication Bibliography 

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Cell-Free DNA BCT compatibility with Epi proColon qPCR assay

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Limiting pre-analytical Variation in Assay Development with Cell-Free DNA BCT

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DescriptionCatalog Number
10 mL tube
6-tube pack (10.0 mL) glass, RUO218961
100-tube box (10.0 mL) glass, RUO218962
1000-tube box (10.0 mL) glass, RUO218992
6-tube pack (10.0 mL) glass, CE218996
100-tube box (10.0 mL) glass, CE218997
1000-tube box (10.0 mL) glass, CE230244
6-tube pack (10.0 mL) glass, Japan Only230570
100-tube box (10.0 mL) glass, Japan Only230571
1000-tube box (10.0 mL) glass, Japan Only230572

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Streck’s patented portfolio of stabilization solutions enables scientists to mitigate and limit pre-analytical variation in critical samples, ease handling concerns and allow for room temperature storage, cold-chain free shipping and batch processing. Our direct draw blood collection tubes and preservation products for biofluids are recognized worldwide. Target analytes include cell-free DNA, cell-free RNA, clusters of differentiation antigens, extracellular vesicles and cellular nucleic acids.

Cell-Free DNA Blood Collection Tubes

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