Synonyms: Benzeneaceticacid, a-methoxy-a-(trifluoromethyl)-, (S)-;Hydratropic acid, b,b,b-trifluoro-a-methoxy-, (-)- (8CI); (-)-(S)-MTPA; (-)-MTPA;(-)-Mosher's acid; (-)-a-Methoxy-a-(trifluoromethyl)phenylaceticacid; (S)-(-)-3,3,3-Trifluoro-2-phenyl-2-methoxypropanoic acid; (S)-(-)-Mosheracid; (S)-(-)-b,b,b-Trifluoro-a-methoxyhydratropic acid; (S)-2-Methoxy-2-phenyl-2-(trifluoromethyl)ethanoicacid; (S)-2-Methoxy-2-trifluoromethylphenyl acetic acid; (S)-MTPA;(S)-Methoxy(trifluoromethyl)phenylacetic acid; (S)-Mosher acid; (S)-Mosher'sacid; (S)-a-Methoxy-a-(trifluoromethyl)phenylaceticacid; (aS)-a-Methoxy-a-(trifluoromethyl)benzeneacetic acid; Mosher's acid; S-(-)-a-Methoxy-a-(trifluoromethyl)phenylaceticacid