Furoic acid, white monoclinic rhombic crystal, slightly soluble in cold water, soluble in hot water, ethanol and ether, can be used to synthesize methyl furan, furfuramide, furoate and salt; It can be used as plasticizer and thermosetting resin in plastic industry; Used as preservative in food industry; It can also be used as an intermediate of coating additives, medicine and spices.