Avobenzone (CAS 70356-09-1), also known as butyl methoxydibenzoylmethane, is an oil-soluble organic UVA filter supplied as a neat white to pale yellow material that absorbs long-wave ultraviolet light, and it is used in broad-spectrum sun care, daily moisturizers and color cosmetics. It absorbs long-wave ultraviolet light, preventing photoaging and skin damage.
Typical Properties
| Molecular formula | C20H22O3 |
|---|---|
| Molecular weight | 310.39 g/mol |
| Form | neat |
| Color | White to Pale Yellow |
| Melting point | 83.5 °C |
| Density | 1.079 |
| Water solubility | 27μg/L at 20°C |
| HS code | 29145000 |
| Grades available | Cosmetic Grade |
Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.
Avobenzone
Applications
Used in broad-spectrum sun care formulations, daily moisturizers, and color cosmetics requiring UV protection. Often stabilized with octocrylene or antioxidants.
Safety & Risks
Approved for topical use; may degrade under UV exposure without stabilizers. Store under an inert atmosphere when possible.
Packaging
Supplied in 25 kg fiber drums or HDPE containers. Store sealed, cool, and protected from light.