Used in bioconjugation and labeling applications, particularly in click chemistry reactions. The methyltetrazine group enables efficient and selective binding with trans-cyclooctene (TCO) or other dienophiles, making it valuable for targeted drug delivery, imaging, and diagnostics. The PEG8 spacer enhances solubility and reduces steric hindrance, improving interaction with biomolecules. The PFP ester moiety allows for easy conjugation to amines, facilitating the attachment of the compound to proteins, peptides, or other amine-containing molecules. This chemical is widely utilized in the development of antibody-drug conjugates (ADCs), fluorescent probes, and other bioconjugate systems for research and therapeutic purposes.