FURFUROL, an organic colourless, aromatic, volatile in flammable, oily liquid, which turns brown on exposure to the air or It is obtained by distilling wood, sugar or bran with moderately-concentrated sulphuric acid. That it be longs to the general class of aldehydes (q.v.) and is a derivative of furan is shown from its structural formula It is also made from corn cobs, oatmeal, oat hulls, straw, jute and certain gums. It can be used as a motor fuel, is used in the lacquer industry and is employed to some extent as a dye base. Some of its derivatives are used as accelerators in the manufacture of rubber (q.v.). Recently, furfurol has found extensive use in the manufacture of synthetic resins and moulding compounds; in the preparation of disinfectants and deodorizers; in light-sensitive printing plates; and as a preventive of fermentation in glue and in dextrin paste.