Photoresist Chemicals L-Isoleucine, L-tyrosyl-L-leucyl-L-alanyl-L-threonyl-L-alanyl-L-seryl-L-threonyl-L-methionyl- L-a-aspartyl-L-histidyl-L-alanyl- Cas：880253-52-1 Molecular Formula：C56H88N14O19S