Photoresist Chemicals L-Alanine, L-arginyl-L-leucyl-L-threonyl-L-valyl-L-serylglycyl-L-serylglycyl-L-serylglycyl-L -alanyl-L-tyrosyl-L-lysyl-L-a-glutamyl-L-prolyl- Cas:847357-29-3 Molecular Formula:C67H110N20O24