WL47 TFA

• CAT Number: I044299
• Molecular Formula: C82H131N24F3O29S4
• Molecular Weight: 1942.32
• Purity: ≥95%

WL47 TFA（Cat No.:I044299）is a synthetic peptide inhibitor designed to block the PD-1/PD-L1 immune checkpoint interaction, thereby enhancing T-cell activation and promoting anti-tumor immune responses. This peptide mimics structural features necessary for binding PD-L1, preventing it from engaging with PD-1, which tumors exploit to evade immune detection. The TFA (trifluoroacetate) form refers to the trifluoroacetate salt used during peptide purification, improving stability and solubility. WL47 TFA is commonly used in cancer immunotherapy research to evaluate immune modulation strategies and offers potential advantages in targeted delivery and reduced immunogenicity compared to antibodies.