The N3-PEG2-C2-PFP ester, a nonclaevable 2-unit polyethylene glycol (PEG) linker, is commonly employed in the synthesis of antibody-drug conjugates (ADCs).
N3-PEG4-C2-Pfp ester is a four-unit polyethylene glycol linker, noncleavable in nature, specifically employed in the fabrication of antibody-drug conjugates (ADCs).