Essential details
Quantity(pieces):25
MOQ:1
Lead time:ready cargo
Shipping:Express, air, land, sea
Specification Number:70356-09-1
Product Introduction
Basic Information
- Chemical Name: Avobenzone
- CAS Number: 70356 - 09 - 1
- Molecular Formula: C₂₀H₂₂O₃
- Molecular Weight: 310.39
- EINECS Number: 274 - 581 - 6
Physical and Chemical Properties1
| Property | Value |
|---|---|
| Melting Point | 81 - 84°C |
| Boiling Point | 463.6 ± 35.0°C (predicted) |
| Density | 1.079 |
| Vapor Pressure | 0 Pa at 25°C |
| Solubility | Slightly soluble in chloroform, DMSO and methanol (with heating and sonication). 27 μg/L in water at 20°C |
| Color | White to light yellow |
| pKa | 9.74 ± 0.13 (predicted) |
| Max Wavelength | 356 nm (EtOH) |
Application in Cosmetics
Avobenzone is a synthetic UV absorber, which is excellent in absorbing UV - A (＞320nm) rays. It can block the full range of UV - A (320 - 400nm) and is a highly effective broad - spectrum oil - soluble UV - A filter1. When combined with other UV - B sunscreens, it can provide comprehensive protection against both UV - A and UV - B, thus being widely used in sunscreens, lotions, creams and other cosmetic products to prevent photoinduced skin cancer
General Information
- What is avobenzone?
Avobenzone is a synthetic organic compound, chemically known as 1-(4-(1,1 - dimethylethyl)phenyl)-3-(4 - methoxyphenyl)-1,3 - propanedione. It's a key ingredient in sunscreens, used to absorb ultraviolet light12. - What are its other names?
It's also called Parsol 1789, Eusolex 9020, 4 - tert - butyl - 4' - methoxy - dibenzoylmethane and butyl methoxydibenzoylmethane2.
Function and Application
- How does avobenzone work in cosmetics?
It absorbs UVA radiation in the range of 320 - 420nm and converts the UV energy into less harmful heat energy, thus protecting the skin from long - term damage and premature aging. - What cosmetics is it usually used in?
It's mainly used in sunscreens, lotions, creams, lip balms with SPF and some moisturizers with SPF.
Safety and Regulation
- Is avobenzone safe for skin?
Generally, it's safe when used as directed, but some people may experience skin irritation or allergic reactions. - What are the regulatory requirements for avobenzone?
In the US, the FDA allows it in concentrations up to 3%. In the EU, it can be used at a maximum concentration of 5% and requires stabilizers.
