Wang resins are the standard supports for the synthesis of peptide acids by solid phase synthesis using the Fmoc strategy. Fmoc protected amino acids are linked to Polystyrene-PHB (Wang resin, consisting of 1% crosslinked polystyrene functionalized with the TFA labile p-benzyloxybenzyl alcohol linker) . 50 - 95% TFA treatment generates free peptide acids. Low loaded Fmoc AA Wang resin - an ideal support for the synthesis of long or difficult peptides. Capacity: 0.2 - 0.35 mmol/g Enantiomeric purity*: > 99.5% Dipeptide content: < 0.5% *with exception of Cys and His Fmoc D-amino acids on request.