InChI=1/C21H18O4/c1-12-5-3-4-6-15(12)11-18-19(22)16-9-10-17(13(2)20(16)24-18)25-21(23)14-7-8-14/h3-6,9-11,14H,7-8H2,1-2H3/b18-11- C7226F149BF2902C