niobium,trichlorooxobis,tetrahydrofuran,furan
Furan
68855-15-21,3-Isobenzofurandione, polymer with 2,2-bis(hydroxymethyl)-1,3-propanediol, 2-butenoate (Z,Z)-9,12-octadecadienoate
90717-52-51,3-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 1,3-isobenzofurandione and nonanedioic acid
68852-48-2(3S)-3aβ,4,5,6,6aα,7,9aα,9bβ-Octahydro-6α-hydroxy-3,6,9-trimethyl-3β,4β-bis[[(Z)-2-methyl-1-oxo-2-butenyl]oxy]azuleno[4,5-b]furan-2(3H)-one