Indobufen Impurity 9

5-(2-Chloro-acetyl)-2-hydroxy-benzoic acid methyl ester Phthalic acid 2-(3-Aminophenyl)butyric acid Indobufen Impurity 3 4-Nitrophenylacetic acid Indobufen Impurity 2 Benzeneacetonitrile, α-ethyl-4-nitro- Benzeneacetonitrile, α-ethyl-2-nitro- Indobufen Benzeneacetic acid, α-ethyl-3-nitro- ethyl 2-(4-nitrophenyl)butanoate Benzeneacetic acid, 4-(1,3-dihydro-1-oxo-2H-isoindol-2-yl)-α-ethyl-, ethyl ester Indobufen Impurity A Benzeneacetonitrile, 4-amino-α-ethyl- α-(p-Aminophenyl)butyric acid 2-[4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)phenyl]butyric acid Benzeneacetic acid, 4-(1,3-dihydro-1,3-dioxo-2H-isoindol-2-yl)-α-ethyl-, ethyl ester Indobufen Impurity 23