Photoresist Chemicals L-Valine, L-threonyl-L-methionyl-L-arginyl-L-asparaginyl-L-prolyl-L-isoleucyl-L-threon yl-L-seryl-L-leucyl-L-isoleucyl-L-seryl- Cas：591227-41-7 Molecular Formula：C57H102N16O18S