Photoresist Chemicals TIANFU-CHEM D-Threonine, D-methionyl-D-phenylalanyl-D-valyl-D-leucyl-D-arginylglycyl-D-histidyl-D-alan yl-D-leucyl-D-phenylalanyl-D-leucyl- Cas:856888-19-2 Molecular Formula:C67H105N17O14S