Description
P21 is a synthetic peptide derived from a short active fragment of ciliary neurotrophic factor (CNTF). It carries an N-terminal acetyl group, a C-terminal amide, and an unnatural adamantane-containing amino acid residue, a modification used in medicinal chemistry to increase lipophilicity and reduce susceptibility to enzymatic cleavage.
Chemical Information
- Peptide sequence: Ac-DGGLAG-NH₂
- Molecular Formula: C₂₇H₄₂N₆O₈
- Molecular Weight: 578.67 g/mol
- Physical Form: Lyophilized powder
- CAS Number: 1246751-68-7
Storage & Handling
Store lyophilized powder at −20 °C for long-term storage, protected from light. Shorter-term storage at 2 to 8 °C is acceptable. Avoid moisture and repeated freeze-thaw cycles. Handle in accordance with standard laboratory safety practices.

