Photoresist Chemicals L-Arginine, L-cysteinyl-L-phenylalanyl-L-arginyl-L-seryl-L-threonyl-L-arginyl-L-histidyl-L- asparaginyl-L-phenylalanyl-L-asparaginyl-L-seryl-L-methionyl- Cas:870458-58-5 Molecular Formula:C68H106N26O19S2