Photoresist Chemicals L-Threonine, L-threonyl-L-leucyl-L-alanyl-L-a-aspartyl-L-phenylalanyl-L-a-aspartyl-L-prol yl-L-arginyl-L-valyl-L-prolyl-L-arginyl- Cas：850464-77-6 Molecular Formula：C61H98N18O19