InChI=1/C19H17FO4/c1-2-23-18-10-12(3-5-16(18)21)9-13-7-8-24-17-6-4-14(20)11-15(17)19(13)22/h3-6,9-11,21H,2,7-8H2,1H3/b13-9+ 095DB5E1E84E6CC1