Furan
Bicyclo[2.2.1]hept-5-ene-2,3-dicarboxylic acid,1,4,5,6,7,7-hexachloro-,polymer with 2,2-dimethyl-1,3-propanediol,2,5-furandione and 1,2-propanediol
Naphtho[2,3-c]furan-1 (3H)-one, 4-(3,4-dihydroxyphenyl)-3a,4,9, 9a-tet rahydro-6,7-dihydroxy-, [3aR-(3a.alpha.,4.alpha., 9a.alpha.)]-
5H-Pyrazolo[3,4-b][1,7]naphthyridin-5-one,4-[5-(1H-benzimidazol-2-ylthio)-2-furanyl]-1,2,4,6,7,8-hexahydro-,2,2,2-trifluoroacetate (1:1)