Isoamyl 4-methoxycinnamate may be used as a reference standard in the determination of isoamyl 4-methoxycinnamate in water samples using liquid chromatography coupled with ultraviolet spectrophotometry detector (LC-UV).

• Derivative of cinnamon acid ester
• Utilised as a sunscreen agent
• Act as a waterproof filter for ultraviolet-B (UV-B) rays