Photoresist Chemicals L-Valine, L-valyl-L-valyl-L-threonyl-L-a-glutamyl-L-alanyl-L-a-glutamyl-L-asparaginyl- L-tyrosyl-L-threonyl-L-asparaginyl-L-phenylalanyl-L-valylglycyl-L-tyrosyl- Cas:848237-97-8 Molecular Formula:C78H113N17O26