cQrex® AC (N,N'-di-L-Alanyl-L-cystine) is a chemically defined and non-animal-derived peptide designed to overcome the reactivity and solubility challenges associated with L-cysteine and its oxidized form L-cystine in cell culture media.
As an alanine-based alternative to cQrex® KC (N,N'-di-L-Lysyl-L-cystine dihydrochloride hydrate), cQrex® AC enables the formulation of basal, feed and perfusion media at neutral pH. It helps to intensify and simplify the bioprocess for a highly efficient production of biopharmaceuticals like monoclonal antibodies.
Typical Applications
- Efficient production of biopharmaceuticals
Benefits at a glance
- Formulation of concentrated media
- Improved cell proliferation and viability
- Higher antibody titer and increased productivity
- Conversion to a single-feed system with reduced process complexity