4-Cyano-3-fluorophenylboronic acid , its CAS NO. is 843663-18-3, the synonyms are 4-Cyano-3-fluorobenzeneboronic acid ; Boronic acid, (4-cyano-3-fluorophenyl)- ; QBQR CF DCN ; 4-Borono-2-fluorobenzonitrile ; TL8005513 .