Omaha, NE – Streck announces Streck Cell-Free DNA Urine Preserve, a formaldehyde-free liquid reagent that stabilizes cell-free DNA (cfDNA) in urine. Samples treated with Cell-Free DNA Urine Preserve are stable up to 7 days at 6 °C to 37 °C, ensuring sample integrity for cfDNA extraction and testing, such as prenatal diagnosis, disease diagnosis and treatment efficacy monitoring, and organ transplant rejection monitoring.

The reagent stabilizes all cellular components including red blood cells, white blood cells, and proteins present at the time of collection, allowing for additional downstream urinalysis testing.

Cell-Free DNA Urine Preserve is packaged in single use 5 mL plastic ampules with the appropriate amount of reagent to preserve individual urine sample volumes of 25 mL to 100 mL. The product is available in 20-ampule and 5-ampule configurations.

Streck’s line of urinalysis products includes UA-Cellular® Complete, a comprehensive cellular component and chemistry analyte urinalysis control designed for the Siemens CLINITEK Atlas® and Sysmex® UF-1000i™ combined urinalysis system; UA-Cellular® for IQ, a urinalysis control designed for the Iris Diagnostics iQ® automated urine analyzers, and UA-Cellular® for UF, a urinalysis control designed for the Sysmex UF-1000i™ urine analyzer.

About Streck, Inc.
Streck is an industry leader in the development and manufacturing of products for clinical and research laboratories. The company’s pursuit of innovative solutions has produced an extensive list of patented products. Streck’s core technology is cell stabilization; product lines support the fields of hematology, immunology and molecular diagnostics. For more information, visit

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