Octocrylene

Octocrylene is an organic compound used in sunscreens and cosmetics to absorb UVB and short-wave UVA (ultraviolet) rays. It is a clear liquid that is oil-soluble. Octocrylene is produced by the reaction of 7-octen-1-ol with phenyl sebacate in the presence of an acid catalyst.

Chemical Properties

Octocrylene is an ester formed from 3,3-diphenylcyanoacrylate and 2-ethylhexanol. It is a clear, colorless to pale yellow liquid that is soluble in oil but insoluble in water. Its chemical formula is C24H27NO2, and it has a molecular weight of 361.48 g/mol.

Uses

Octocrylene is primarily used in sunscreens and cosmetics because of its ability to absorb UVB and short-wave UVA rays. It also helps to reduce the appearance of physical aging caused by the sun. In addition to its UV-absorbing properties, octocrylene is used to stabilize other ingredients, such as avobenzone, that can degrade in the sun.

Health Effects

While octocrylene is generally considered safe for use in sunscreens and cosmetics, some studies have raised concerns about its potential to cause skin allergies and its effects on the environment. However, more research is needed to fully understand these potential risks.

See Also

• Sunscreen
• Ultraviolet
• Cosmetics

References

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Octocrylene

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