Photoresist Chemicals L-Isoleucine, L-glutaminyl-L-lysyl-L-a-glutamyl-L-tyrosyl-L-alanyl-L-leucyl-L-phenylalanyl-L -tyrosyl-L-lysyl-L-leucyl-L-a-aspartyl-L-valyl-L-valyl-L-prolyl- Cas:851177-85-0 Molecular Formula:C89H136N18O23