Octyl 4-methoxycinnamate CAS#5466-77-3

Octyl 4-methoxycinnamate, scientifically known as 2-Ethylhexyl 4-Methoxycinnamate, is a highly effective organic UV filter commonly used in the formulation of sunscreens and cosmetic products. This compound is renowned for its ability to absorb ultraviolet B (UVB) radiation, providing a reliable defense against the sun’s harmful effects on the skin.

Characterized by its chemical formula C19H28O3, Octyl 4-methoxycinnamate is a liquid ester that is readily soluble in organic solvents. It is valued for its photostability, which means it maintains its protective properties even after prolonged exposure to sunlight. This feature makes it an ideal ingredient for products designed to offer long-lasting sun protection.

In addition to its UVB absorption capabilities, Octyl 4-methoxycinnamate is also appreciated for its compatibility with other UV filters, allowing for the creation of broad-spectrum sunscreens. It contributes to the development of formulations that are non-greasy and cosmetically elegant, suitable for a variety of skin types.

As a key component in sun care products, Octyl 4-methoxycinnamate supports the skin’s health by preventing sunburn, reducing the risk of skin cancer, and delaying the signs of photoaging. Its safety profile and efficacy make it a preferred choice in the personal care and dermatological industries for sun protection solutions.

Octyl 4-methoxycinnamate Chemical Properties
Melting point <-25℃
Boiling point 198-200°C
density 1.009
refractive index 1.543-1.547
Fp 193°C
storage temp. 2-8°C
solubility Chloroform (Slightly), Methanol (Slightly)
form Liquid
color Clear colorless to yellow
Water Solubility <0.1 g/100 mL at 27 ºC
BRN 5946632
Stability: Stable. Incompatible with strong oxidizing agents.
InChIKey YBGZDTIWKVFICR-JLHYYAGUSA-N
LogP 5.921 (est)
CAS DataBase Reference 5466-77-3(CAS DataBase Reference)
NIST Chemistry Reference 2-Propenoic acid, 3-(4-methoxyphenyl)-, 2-ethylhexyl ester(5466-77-3)
EPA Substance Registry System 2-Ethylhexyl p-methoxycinnamate (5466-77-3)
Safety Information
Safety Statements 24/25
WGK Germany nwg
RTECS UD3392732
HS Code 29189090
Hazardous Substances Data 5466-77-3(Hazardous Substances Data)