Cyto-Chex® BCT

Cyto-Chex BCT is a direct draw blood collection tube that maintains cellular morphology and surface antigen expression, including cluster of differentiation (CD) markers, prior to analysis by flow cytometry. Whole blood samples collected in Cyto-Chex BCT can be stored at room temperature for up to 14 days.

Cyto-Chex BCT has been FDA 510(k) cleared for consistent recovery of HIV-associated lymphocyte subsets (CD3, CD4, CD8, CD19, CD16/CD56 and CD45) for up to 14 days.

Cold chain free – Transport samples at room temperature

Cyto Chex BCT pre-analytical workflow


  • Stabilizes whole blood samples for up to 14 days prior to analysis by flow cytometry
  • FDA 510(k) cleared for consistent recovery of HIV-associated lymphocyte subsets for up to 14 days of room temperature storage
  • Available in 5 mL and 2 mL vials


  • Limits the adverse effects of time, storage and transport conditions on sample integrity
  • Reduces the need for immediate sample processing and analysis
  • Allows for the batching of samples, optimizing laboratory workflow
  • Minimizes patient recalls, redraws and associated costs
DescriptionCatalog Number
6-tube pack (2.0 mL) glass213559
100-tube box (2.0 mL) glass218980
6-tube pack (5.0 mL) glass213361
25-tube box (5.0 mL) glass213362
100-tube box (5.0 mL) glass213386

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Immunomagnetic isolation of PBMCs from Cyto-Chex BCT-stabilized whole blood

Flow Cytometry Products

We offer a comprehensive line of positive procedural controls and cellular stabilization products for immunophenotyping by flow cytometry. Our CD-Chex® quality controls provide you with assay values for various leukocyte populations, intracellular and surface markers, and our cellular stabilization products allow you to preserve samples for extended periods of time, eliminating the need for cold-chain shipping or immediate processing.

Is there another specimen type you would like to see stabilized?

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