Proinsulin C-peptide (human) is a 31-amino acid peptide that connects the Proinsulin a and B chains, ensuring its proper folding, biological activity, and regulation of cellular functions.

BAY-678 is a human neutrophil elastase (HNE; IC50: 20 nM) inhibitor with oral bioactivity, potency and selectivity.BAY-678 is a chemical probe recommended by the Structural Genomics Consortium (SGC).

TAT 2-4 is a peptide derived from HIV-1 transactivator of transcription (Tat) protein.The HIV Tat-derived peptide is a small basic peptide that has been successfully shown to deliver a large variety of cargoes, from small particles to proteins, peptides and nucleic acids.