CHO HCP ELISA Kit, 3G | F550-1

CHO HCP ELISA Kit, 3G is intended for use in determining the presence of host cell protein impurities in products manufactured by expression in the CHO cell line. The kit is for Research and Manufacturing Use Only and is not intended for diagnostic use in humans or animals. This is the 3rd Generation ELISA kit for CHO HCP detection. We continue to market two earlier generation kits, Cat #s F015 and CM015 for CHO HCP detection. While those kits are broadly reactive to CHO HCPs among all strains and have been successfully qualified for a range of drug substances, this 3rd Generation assay uses an even more broadly reactive antibody. Originally the 3rd generation kit was denoted as Cat# F550. The current Cat# F550-1 is the same catalog number with an extension to designate it as a re-supply of antibodies and antigen. The resupply reagents have been extensively tested in parallel with the F550 reagents. This testing has shown very little differences, so minimal impact to sample results are expected. Bridging, re-qualification, or re-validation studies should be done to transition between the F550 reagents and the re-supplied F550-1 reagents.