Not less than-95.0%
(R)-2-Phenylbutanoic Acid; (R)-(-)-2-Phenylbutyric Acid; (αR)-α-Ethylbenzeneacetic Acid; (-)-(R)-2-Phenylbutyric Acid; (-)-2-Phenylbutanoic Acid; (R)-(-)-α-Ethylphenylacetic Acid; (R)-α-Ethylbenzeneacetic Acid