Molecular Structure:

Product description: Description
It is a pale yellow liquid. It may have a slight characteristic odour. BHT (max. 0.1%) is added as an antioxidant.
Product identification
Chemical names: 3-(4-methoxy-phenyl)-propionic acid 2-ethyl-hexyl ester; 2-ethylhexyl 3- (4-methoxyphenyl)-2-propenoate
CAS No.: 5466-77-3
INCI name: ethylhexyl methoxycinnamate  (2-ethylhexyl methoxycinnamate)
USAN: octinoxate
Empirical formula: C₁₈H₂₆O₃
Molecular mass: 290.4 g/mol
Specifications Appearance: pale yellow liquid
Identity: corresponds
Specific density (25 °C): 1.005–1.013
Refractive index (20 °C): 1.542–1.548
Acidity: max. 0.8 mL NaOH 0.1N
Gas chromatography:
cis-Isomer: max. 0.5%
trans-Isomer: 95.0–105.0%
UV specific extinction (E 1%, 1 cm at 310 nm): 835-865
Chromatographic purity: Each: max. 0.5%
Total: max. 2.0%
Solubility
It is miscible with ethanol and commonly used lipids, but does not mix with water.