InChI=1S/2C20H18FNO4.Ca/c2*1-26-14-5-2-4-12(10-14)13-8-9-18(17(21)11-13)22-19(23)15-6-3-7-16(15)20(24)25;/h2*2,4-5,8-11H,3,6-7H2,1H3,(H,22,23)(H,24,25);/q;;+2/p-2