General description
Fmoc-PAL-AM resin consists of Barany′s aminomethyl-dimethoxyphenoxyvaleric acid linker [1] attached to aminomethylated polystyrene. The amino group of this linker can be easily acylated under standard coupling conditions. Following peptide assembly, treatment with 95% TFA containing scavengers releases the desired peptide amide. Studies have shown the acid sensitivity of this linker to be around twice that of the Rink amide linker [2]. There is some evidence to suggest that PAL resins give greater yields in microwave assisted synthesis.

Associated Protocols and Technical Articles
Protocols for Loading of Peptide Synthesis Resins

Analysis Note
Colour (visual): white to yellow to beige
Appearance of substance (visual): beads
Loading (Photometric determination of the Fmoc-chromophore liberated upon treatment with DBU/DMF): 0.50 – 0.80 mmol/g
Swelling Volume (in DMF): lot specific result

Legal Information
Novabiochem is a registered trademark of Merck KGaA, Darmstadt, Germany