4-(Furan-3-yl)benzoic acid

4-(5-Formylfuran-3-yl)benzoic acid

4-(2-Formylfuran-3-yl)benzoic acid

4-(5-(Carboxyl)furan-2-yl)benzoic acid

4-(5-(Methoxycarbonyl)furan-2-yl)benzoic acid