Photoresist Chemicals L-Alanine, L-methionyl-L-leucyl-L-leucyl-L-prolyl-L-valyl-L-prolyl-L-leucyl-L-leucyl-L-leuc ylglycyl-L-leucyl-L-leucylglycyl-L-leucyl-L-alanyl-L-alanyl- Cas:870707-47-4 Molecular Formula:C81H143N17O18S