Photoresist Chemicals L-Cysteine, L-cysteinyl-L-prolyl-L-arginyl-L-threonyl-L-cysteinylglycyl-L-alanyl-L-alanyl-L- cysteinyl-L-alanyl-L-seryl-L-prolyl- Cas：847842-85-7 Molecular Formula：C46H78N16O16S4