Photoresist Chemicals L-Lysine, L-valyl-L-cysteinyl-L-a-glutamyl-L-prolyl-L-cysteinyl-L-tyrosyl-L-a-glutamyl-L -glutaminyl-L-leucyl-L-asparaginyl- Cas：823203-90-3 Molecular Formula：C56H88N14O19S2