Photoresist Chemicals L-Tyrosine, L-alanyl-L-valyl-L-histidyl-L-alanyl-L-alanyl-L-histidyl-L-alanyl-L-a-glutamyl-L- isoleucyl-L-asparaginyl-L-a-glutamyl-L-alanylglycyl-L-arginyl- Cas:98496-10-7 Molecular Formula:C69H105N23O22