Photoresist Chemicals 1,8-Naphthyridine-3-carboxylic acid, 7-(2,7-diazaspiro[4.4]non-2-yl)-1-ethyl-6-fluoro-1,4-dihydro-4-oxo-, monohydrochloride Cas：91196-83-7 Molecular Formula：C18H21FN4O3.ClH