Amlexanox CAS 68302-57-8 is a white  to yellowish white crystal or crystalline powder, odorless and tasteless. Soluble in dimethyl sulfoxide, easily soluble in dimethylformamide, insoluble in tetrahydrofuran, difficult soluble in methanol, ethanol or chloroform, almost insoluble in ether, acetonitrile or water. Melting point> 300 ℃.Amlexanox is usually applied four times a day, following brushing and flossing after breakfast, lunch, dinner, and at bedtime. Squeeze 1/4 inch (0.6 centimeters) of the paste on your finger. With gentle pressure, dab amlexanox onto each ulcer in the mouth. Wash hands immediately after using amlexanox. Amlexanox is only used until the ulcer has healed, usually within 10 days. Contact your physician or dentist if significant healing has not occurred within 10 days.