P21 is a synthetic CNTF-derived tetrapeptide carrying a C-terminal adamantylglycine. It is studied for its effect on endogenous CNTF and BDNF signalling in hippocampal neurogenesis research.
- Ac-DGGLAG-NH2, a DGGL tetrapeptide with a C-terminal adamantylglycine
- Derived from the CNTF active fragment (residues 148 to 151)
- Identified via epitope mapping of Cerebrolysin peptides
- Studied for its effect on endogenous CNTF and BDNF signalling
- Studied in hippocampal neurogenesis research models
Research profile: P21: structure, mechanism and research use
Independent test: a sample of this product was analysed by Janoshik Analytical on 11 February 2026, purity 99.44% by RP-HPLC. The certificate is shown in the lab band on this page.





