Not less than-95.0%
2-Ethyl-2-phenylacetic Acid; α-Ethylbenzeneacetic Acid; (RS)-2-Phenylbutanoic Acid;(+/-)-2-Phenylbutanoic Acid; α-Ethyl-α-toluic Acid; α-Ethylbenzeneacetic Acid; α-Ethylphenylacetic Acid;