Photoresist Chemicals L-Phenylalanine, L-tryptophyl-L-tyrosyl-L-alanyl-L-seryl-L-arginylglycyl-L-isoleucyl-L-arginyl-L- prolyl-D-valylglycyl-L-arginyl- Cas：848484-21-9 Molecular Formula：C73H109N23O16