Photoresist Chemicals L-Arginine, L-phenylalanyl-L-glutaminyl-L-arginyl-L-prolyl-L-threonyl-L-isoleucyl-L-seryl- L-seryl-L-asparaginyl-L-seryl-L-histidyl-L-alanyl-L-isoleucyl-L-phenylalanyl- Cas:915717-92-9 Molecular Formula:C78H121N25O22