1-Methylethyl 5-fluoro-3-pyridinecarboxylate 23723-24-2 3-Pyridinecarboxylic acid, 5-fluoro-, 1-methylethyl ester 5-22-02-00173 (Beilstein Handbook Reference) BRN 0474224 Isopropyl 5-fluoronicotinate Nicotinic acid, 5-fluoro-, isopropyl ester (8CI)