Synthetic Serum | Synthetic Urine | Immunoassay Control Matrix
CST manufactures synthetic serum and synthetic urine for immunoassay controls, in vitro diagnostics, medical device development and product testing
CST Technologies
Engineering the Future of Diagnostics
Before synthetic biology captured headlines, CST Technologies was already reshaping the diagnostics landscape. For over four decades, the company has specialized in developing synthetic serum and urine matrices— delivering contamination-free, scalable, and highly stable solutions that have become the backbone of some of the industry’s most trusted diagnostic controls. By replacing inconsistent biological materials with engineered precision, CST Technologies helped set new benchmarks long before the world caught on.
The company’s impact on in vitro diagnostic (IVD) manufacturing has been profound. With products that eliminate lot-to-lot variation and coldchain dependencies, CST offers a rare combination of consistency, reliability, and peace of mind. Its unwavering commitment to quality has earned CST a reputation as a silent standard-bearer for laboratories and manufacturers worldwide.
CST Technologies is one of the Top Biomanufaturing Companies.
Our Company
CST Technologies is the inventor and global manufacturer of SeraSub® Synthetic Serum and UriSub® Synthetic Urine.
OUR PRODUCTS
SeraSub and UriSub are CST Technologies stable, consistent, uncontaminated and cost-effective alternatives to human serum albumin (HSA), bovine serum albumin (BSA), serum and urine.
OUR CLIENTS
SeraSub and UriSub have been used by hundreds of customers for immunoassay controls, in vitro diagnostics, medical device development and product testing.
SERASUB® AND URISUB®
Unlike human- and animal-based serum and urine, SeraSub and UriSub are stable at room temperature, are free of microbiologic contaminants and have unmatched lot-to-lot consistency. Remarkably, SeraSub and UriSub also have the ability to preserve many types of analytes including sensitive enzymes, proteins, haptens and drugs-of-abuse analytes.
SeraSub and UriSub can thereby eliminate the need for storage by lyophilization (freeze-drying), reducing costs and any chance of error during reconstitution.
READ ABOUT CST PRODUCTS
Quantitative determination of endogenous compounds in biological samples using chromatographic techniques
Chromatographic methods are increasingly being used for the quantitative determination of endogenous compounds in biological samples. This article presents an overview of the specific issues, which have to be taken into account for the development, validation and application of these methods. The usual lack of analyte-free samples of the biological matrix implies that alternative strategies for calibration have to be followed. This article compares and discusses the advantages and disadvantages of two strategies – the use of the authentic analyte in a surrogate matrix and the use of a surrogate analyte in the authentic matrix. In addition, it highlights important aspects of the validation of chromatographic methods for endogenous analytes.