Not Less Than - 95%
(S)-Naproxen Methyl Ester; (αS)-6-Methoxy-α-methyl-2-naphthaleneacetic Acid Methyl Ester; (+)-Naproxen Methyl Ester; (S)-Naproxen Methyl Ester; Methyl (S)-2-(6-Methoxynaphthalen-2-yl) propanoate; Naproxen Methyl Ester; (S)-6-Methoxy-α-methyl-2-naphthaleneacetic Acid Methyl Ester; (S)-Methyl 2-(6-methoxynaphthalen-2-yl)propanoate; Naproxen Related Compound E