Indobufen Impurity 2 Sodium Salt

1H-Isoindole-1,3(2H)-dione, 2-(4-propylphenyl)- Indobufen Impurity A Indobufen Impurity 9 Benzeneacetic acid, 4-(1,3-dihydro-1-oxo-2H-isoindol-2-yl)-α-ethyl-, methyl ester Benzeneacetonitrile, 4-amino-α-ethyl- Benzeneacetic acid, α-ethyl-2-nitro- Citraconic anhydride α-(p-Aminophenyl)butyric acid Terephthalic acid ethyl 2-(4-aminophenyl)butanoate 5-(2R)-2-Oxiranyl-8-benzyloxy-2(1H)-quinolinone Benzeneacetonitrile, α-ethyl-2-nitro- 2-(3-Aminophenyl)butyric acid Indobufen Impurity 3 Isophthalic acid Benzeneacetonitrile, α-ethyl-3-nitro- 1-NITRO-4-N-PROPYLBENZENE Indobufen Impurity 2