Fmoc-L-Val-OSu is an Fmoc protected valine derivative that is potentially useful for proteomics studies and solid phase peptide synthesis techniques. Valine is one of the simplest amino acids - an isopropyl group as the side chain. This smaller side chain confers a fairly high degree of flexibility when incorporated into a polypeptide chain. The Fmoc group is typically removed with a base such as pyridine - an orthogonal de-protection strategy to the acid labilie Boc group.An Fmoc protected valine derivative. Fmoc-L-Val-OSu is an Fmoc protected valine derivative that is potentially useful for proteomics studies and solid phase peptide synthesis techniques. Valine is one of the simplest amino acids - an isopropyl group as the side chain. This smaller side chain confers a fairly high degree of flexibility when incorporated into a polypeptide chain. The Fmoc group is typically removed with a base such as pyridine - an orthogonal de-protection strategy to the acid labilie Boc group. An Fmoc protected valine derivative.