Diphenic anhydride6050-13-155 % similar 4,4-Oxydianiline pyromellitic dianhydride copolymer25038-81-752 % similar Urolithin A1143-70-041 % similar Ellagic acid476-66-438 % similar 5H-Dithieno[3,2-B:2',3'-D]pyran-5-one1295502-12-334 % similar Urolithin B1139-83-934 % similar 3,3′-Di-O-methylellagic acid2239-88-532 % similar Uv 363818600-59-432 % similar 2-Methyl-4H-3,1-benzoxazin-4-one525-76-832 % similar 5-Chloroisatoic anhydride4743-17-331 % similar 3-Cyanocoumarin15119-34-331 % similar