2-Benzimidazolecarbamic acid, 5-(p-fluorobenzoyl)-, methyl ester 31430-15-6 Carbamic acid, [5-(4-fluorobenzoyl)-1H-benzimidazol-2-yl]-, methyl ester Flubendazole Flubenol Fluvermal Methyl 5-(p-fluorobenzoyl)-2-benzimidazolecarbamate NSC313680 R 17,889 R 17899