Photoresist Chemicals L-Valine, L-cysteinyl-L-a-aspartyl-L-asparaginyl-L-alanylglycyl-L-seryl-L-valyl-L-seryl- L-phenylalanyl-L-phenylalanyl-L-prolyl-L-glutaminyl-L-alanyl-L-a-glutamyl-L- threonyl-L-cysteinyl-L-lysyl- Cas:488837-17-8 Molecular Formula:C81H123N21O28S2