Photoresist Chemicals 2-Pyrrolidinecarbonitrile, 1-[(2R)-amino[(1R,2R)-2-[(4-nitrophenoxy)methyl]cyclopropyl]acetyl]-, (2S)-, mono(trifluoroacetate) Cas:856894-15-0 Molecular Formula:C17H20N4O4.C2HF3O2