xanthen,furan,carboxamide
Furan
40680-91-92-[[5-[3-(4-butoxyphenyl)-1-hydroxypropyl]-4,7-dimethoxy-1-benzofuran-6-yl]oxy]ethyl-dimethylazanium;2-hydroxy-2-oxoacetate
40680-84-02-[5-[3-(4-fluorophenyl)-1-hydroxy-propyl]-4,7-dimethoxy-benzofuran-6-yl]oxyethyl-dimethyl-ammonium; 2-hydroxy-2-oxo-acetate
40737-20-0(5,8a-dimethyl-1-methylidene-2,8-dioxo-3a,4,5,5a,9,9a-hexahydroazuleno[6,5-b]furan-9-yl) 3-methylbut-2-enoate