Ibuprofen EP Impurity - B

(2RS)-2-(4-Butylphenyl)propanoic Acid; p-Butyl Ibuprofen; 4-Butyl-α-methylbenzeneacetic Acid; p-Butylhydratropic Acid; 2-(4-n-Butylphenyl)propionic Acid; 2-(p-Butylphenyl)propionic Acid; 4-Butyl-α-methylbenzeneacetic Acid; (2RS)-2-(4-Butylphenyl)propanoic Acid; 2-(4-butylphenyl)propionic Acid; Ibuprofen Impurity B (IP); n-Butyl ibuprofen; 2-(4-Butylphenyl)propanoic acid (USP);