At a glance
- CAS number
- 5466-77-3
- INCI name
- Ethylhexyl Methoxycinnamate
- Function
- uv_filter, emollient
- Typical use level
- 1%–10%
- Solubility
- oil
CAS number and synonyms are sourced from PubChem. Function, usage levels, pH and compatibility are AI-assisted formulation guidance — verify against your supplier's technical data sheet and applicable regulations before use.
Also known as
Octinoxate Octyl Methoxycinnamate OMC 2-Ethylhexyl 4-Methoxycinnamate Uvinul MC80
Compatibility
Works well with:
Octocrylene Butyl Methoxydibenzoylmethane Titanium Dioxide Zinc Oxide Homosalate Ethylhexyl Salicylate
Use caution with:
Butyl Methoxydibenzoylmethane
Ethylhexyl Methoxycinnamate is known to cause photodegradation of Butyl Methoxydibenzoylmethane (Avobenzone) upon UV exposure, reducing broad-spectrum efficacy; pairing with photostabilizers such as Octocrylene or Bis-Ethylhexyloxyphenol Methoxyphenyl Triazine is strongly recommended to mitigate this. It is an oil-soluble filter and should be incorporated into the oil phase of emulsions. At high concentrations it can thin the oil phase, so viscosity adjustment may be necessary.
Formulation notes
Ethylhexyl Methoxycinnamate is one of the most widely used UVB filters globally, absorbing UV radiation in the 290–320 nm range with a peak absorption around 310 nm, providing effective protection against sunburn. It also imparts mild emollient properties, contributing to skin feel in sunscreen and daily-wear formulations. Regulatory maximum use levels vary by market (10% in the EU, 7.5% in the US as an OTC drug), and ongoing regulatory scrutiny regarding endocrine activity and aquatic toxicity means formulators should monitor evolving guidelines.
Related ingredients
- Bis-Ethylhexyloxyphenol Methoxyphenyl TriazineUv Filter
- Diethylamino Hydroxybenzoyl Hexyl BenzoateUv Filter
- Arachidyl AlcoholEmollient
- BakuchiolActive
- Behenyl AlcoholEmollient
- Behenyl PEG/PPG-20/20 DimethiconeEmulsifier