Answer: furfural

AnswerCrossword Clue
furfuralcolorless, oily liquid, C5H4O2, having an aromatic odor, obtained from bran, sugar, wood, corncobs, or the like, by distillation: used chiefly in the manufacture of plastics and as a solvent in the refining of lubricating
furfurala liquid obtained from bran and acid, also FURAL, FURFUROL, FUROL, FUROLE