2-(3-Ethylphenyl)acetic Acid is used in the discovery and synthesis of 8-Aza-5-thiaprostaglandin E1 analogs as EP4 agonist;Also, it is derived from Methyl 2-(3-Bromophenyl)acetate (M294990), which is used as a reagent to synthesize the methyl ester derivative of (R)-Flurbiprofen (F598730). (R)-Flurbiprofen is a nonsteroidal anti-inflammatory drug that exists as a racemate and also has potential application as a treatment for patients with Alzheimer’s Disease.