6-Methoxy-2-naphthaleneboronic acid , its cas register number is 156641-98-4. It also can be called 6-Methoxynaphthalene-2-Boronic Acid ; 6-Methoxynaphthyl-2-Boronic Acid ; (6-Methoxy-2-Naphthyl)Boronic Acid ; (6-Methoxy-2-Naphthalenyl)Boronic Acid ; 6-Methoxy-2-Naphthaleneboronic .It is a white to off-white crystalline powder.