Ibuprofen EP Impurity - E

4'-Isobutylacetophenone; 1-[4-(2-Methylpropyl)phenyl]ethanone; 1-Acetyl-4-isobutylbenzene; 1-[4-(2-Methylpropyl)phenyl]-1-ethanone; 4'-Isobutylacetophenone; 1-[4-(2-Methylpropyl)phenyl]ethanone; 4-(2-Methylpropyl)acetophenone; NSC 173015; p-Acetylisobutylbenzene; p-Isobutylacetophenone; p-Isobutylphenyl Methyl Ketone; 4-IBAP; Ibuprofen impurity E (IP); 4-Isobutylacetophenone; Ibuprofen Related Compound C (USP);