5,7-Dihydroxy-3-(4-methoxy-phenyl)-4-oxo-4H-chromen-2-carbonsaeure-aethylester, 2-Carbethoxy-5,7-dihydroxy-4'-methoxyisoflavone, Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-benzo[b]pyran-2-carboxylate, 2-carboethoxy-5,7-dihydroxy-4'-methoxy isoflavone, 5,7-dihydroxy-3-(4-methoxy-phenyl)-4-oxo-4H-chromene-2-carboxylic acid ethyl ester, ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-1-benzopyran-2-carboxylate, Ethyl 5,7-dihydroxy-3-(4-methoxyphenyl)-4-oxo-4H-chromene-2-carboxylate