cQrex® AC

cQrex® AC (N,N'-di-L-Alanyl-L-Cystine) is a chemically defined cystine 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), cQrex® AC is a highly soluble and non-animal-derived ingredient which enables the formulation of concentrated, pH-neutral media.

cQrex® AC helps to intensify and simplify the bioprocess for a highly efficient production of biopharmaceuticals like therapeutic proteins or viral vectors.

For more information on our performance-boosting cQrex® ingredients, please follow the link below to our product website.

For additional value-adding content and technical documentation, we recommend the free registration to our customer portal onCare at https://oncare.evonik.com/.

Product Details