Photoresist Chemicals L-Serine, glycyl-L-tyrosyl-L-isoleucyl-L-asparaginyl-L-tyrosyl-L-alanylglycyl-L-tyrosyl-L -threonyl-L-threonyl-L-tyrosyl-L-asparaginyl-L-prolyl-L-seryl-L-leucyl-L-lysyl- Cas:918406-74-3 Molecular Formula:C88H126N20O28