DSPE-PEG4-DBCO is a PEG-based linker for PROTACs that joins two essential ligands, essential for forming PROTAC molecules, enabling selective protein degradation by leveraging the ubiquitin-proteasome system within cells.

EPQpYEEIPIYL, a phosphopeptide, is a Src homology 2 (SH2) domain ligand. EPQpYEEIPIYL activates Src family members (e.g. Lck, Hck, Fyn) by binding to SH2 domains.

N-acetyl Sulfamethoxazole is a metabolite of sulfamethoxazole, an antibiotic with antiviral activity, that can be detected in urine.