Noun
English Wikipedia has an article on:2,5-DimethylfuranWikipedia
dimethylfuran (plural dimethylfurans)
(organic chemistry) Any of four isomers of the heterocyclic compound formed by substituting two methyl groups for hydrogen in furan; but especially 2,5-dimethylfuran obtained by catalytic reduction of fructose from biomass for use as a biofuel