What is "hydroxymethylfurfural"

n. (context organic compound English) A heterocyclic compound, ''5-(hydroxymethyl)-2-furaldehyde'', that is formed during the thermal decomposition of some sugars, and has potential use as a biofuel

Hydroxymethylfurfural (HMF), also 5-(Hydroxymethyl)furfural, is an organic compound derived from dehydration of certain sugars. This yellow low-melting solid is highly water-soluble. The molecule consists of a furan ring, containing both aldehyde and alcohol functional groups. HMF has been identified in a wide variety of baked goods. HMF, which is derived from hexoses, is a potential " carbon-neutral" feedstock for fuels and chemicals.