Photoresist Chemicals L-Proline, L-valyl-L-glutaminyl-L-alanyl-L-isoleucyl-L-arginyl-L-a-glutamyl-L-threonyl-L- valyl-L-a-glutamyl-L-leucyl-L-arginyl-L-glutaminyl-L-tyrosyl-L-a-aspartyl- Cas:594831-48-8 Molecular Formula:C79H129N23O26