Photoresist Chemicals L-Lysine, L-alanyl-L-a-aspartylglycyl-L-valyl-L-valyl-L-a-aspartyl-L-leucyl-L-asparagin yl-L-tryptophyl-L-alanyl-L-alanyl-L-a-glutamyl-L-valyl-L-leucyl- Cas:573989-49-8 Molecular Formula:C72H114N18O23