Evonik’s cQrex® portfolio is specifically designed to enhance cell culture media and optimize bioprocessing with ingredients that meet stringent regulatory requirements for biopharmaceutical manufacturing. Unlike free L-glutamine, L-tyrosine and L-cysteine, cQrex® peptides are resistant to degradation and highly soluble in media at neutral pH. The antioxidant cQrex® AKG limits oxidative damages in the cell.
Formulating or supplementing media with cQrex® peptides allows for process intensification and simplification with concentrated media and single-feed systems. They enable productivity increase and production cost savings, ensuring highly efficient manufacturing of biopharmaceuticals.
cQrex® KC
Brand of
| Generic Name | Product Group | Applications |
| L-Alanyl-L-Glutamine | GLUTAMINE PEPTIDES | |
| Glycyl-L-Glutamine Hydrate | GLUTAMINE PEPTIDES | |
| L-Alanyl-L-Tyrosine Trihydrate | TYROSINE PEPTIDES | |
| Glycyl-L-Tyrosine Dihydrate | TYROSINE PEPTIDES | |
| N,N’-di-L-Alanyl-L-Cystine | CYSTINE PEPTIDES | |
| N,N’-di-L-Lysyl-L-Cystine dihydrochloride | CYSTINE PEPTIDES | |
| Alpha-Ketoglutaric acid | ANTIOXIDANT |
Request a Free Sample
Explore our product range and order samples you'd like to evaluate before committing.
Still Looking for Something?
Our team is ready to help. Reach out and we'll find exactly what you need.
