Heterocyclic Compounds With Oxygen Hetero-atom[s] Only, Containing An Unfused Furan Ring, Whether Or Not Hydrogenated, In The Structure (excl. Tetrahydrofuran, 2-furaldehyde "furfuraldehyde", Furfuryl Alcohol And Tetrahydrofurfuryl Alcohol)
Heterocyclic Compounds With Oxygen Hetero-atom[s] Only, Containing An Unfused Furan Ring, Whether Or Not Hydrogenated, In The Structure