Photoresist Chemicals L-Leucine, L-histidyl-L-prolyl-L-lysyl-L-histidyl-L-lysylglycyl-L-tryptophyl-L-phenylalanyl-L -a-glutamyl-L-threonyl-L-tryptophyl- Cas：488144-34-9 Molecular Formula：C77H104N20O16