STEMCELL offers a suite of products and services that help you get the results you need. Overcome challenges in your experimental procedures by engaging with our Contract Assay Services (CAS) or training programs and combining the power of STEMCELL media and reagents with the knowledge of our scientists and educators. CAS is a contract research organization (CRO) established within STEMCELL that specializes in primary cell-based assays. CAS offers services such as the Colony-Forming Unit (CFU) assay for hematotoxicity testing, immunological assessment, and biopharmaceutical testing, as well as the development of custom assays for a variety of cell types.