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| Catalog Number | CI-SC-0555 |
| Product Name | Avobenzone |
| CAS | 70356-09-1 |
| Structure |  |
| Synonyms | Butyl methoxydibenzoylmethane |
| Description | Oil-soluble UVA filter. Ability to absorb ultraviolet light over a wider range of wavelengths than many other sunscreen agents. Absorption maximum of 357 nm. |
| Molecular Weight | 310.4 g/mol |
| Molecular Formula | C20H22O3 |
| Melting Point | 81.0-86.0 °C |
| Purity | 97-104% |
| Density | 1.079 g/ml |
| Solubility | Water-insoluble, soluble in isopropanol, octocrylene, decyl oleate, capric/caprylic triglyceride, and other oils |
| Appearance | Off-white to yellowish, crystalline powder, weak odor |
| Application | Sun care products, baby sun care products, daily sun protection, decorative cosmetics. |
| Storage | Store light-protected at a cool and dry place |
| Composition | Butyl methoxydibenzoyl methane |
| Features And Benefits | Oil-soluble UVA filterCan easily be combined with other sunscreens (e.g. octocrylene, homosalate, ethylhexyl salicylate, OM-cinnamate) |
| GMO | GMO-free (does not contain plant-derived components) |
| HS Code | 3304100000 |
| INCI | Butyl methoxydibenzoyl methane |
| Manufacture | Avobenzone is produced synthetically by reacting 4-tert-butylbenzoic methyl ester (from 4-tert-butylbenzoic acid by esterification with methanol) with 4-methoxyacetophenone in toluene in the presence of sodium amide. |
| Preservation | Preservative-free |
| Purity Grade | No purity grade applicable |
| Raw Material Source | 4-tert-butylbenzoic methyl ester and 4-methoxyacetophenone |
| Topological Polar Surface Area | 43.4 Ų |
| Uses | Incorporate into oil phase, allowed use levels: USA 3%, EU 5%, Brazil 5%, Japan 10%. Do not use avobenzone together with titanium dioxide and/or zinc oxide (avobenzone can lose its activity). Ions of heavy metals may induce colored complexes (use EDTA to avoid). Stearates, aluminum, zinc or magnesium salts may induce precipitations. For external use only. |
Avobenzone is a pale yellow compound recognized for its role in skin and sun care formulations, primarily as a UV-A absorber. It is commonly used in conjunction with UV-B absorbers, such as OMC, in a variety of cosmetic products, including creams and lotions. When included in sunscreen formulations, it contributes to robust sun protection by effectively blocking both UV-A and UV-B radiation, offering broad-spectrum defense for the skin. Avobenzone is also utilized in protective hair care products and occasionally serves as a photo-antioxidant to shield products from photo-oxidation. While insoluble in many common bases like water, glycerin, mineral oil, and alcohol, it is soluble in substances such as isopropyl myristate and isopropyl adipate. It is a recommended ingredient for a range of skin care products, including medicated preparations, protective skin tone formulations, makeup creams and lotions, as well as hand creams, face creams, moisturizing creams, and anti-aging products.
What is Avobenzone and what are its primary uses in skincare products?
Avobenzone, also known as Butyl Methoxydibenzoylmethane, is a pale yellow powder with a weakly aromatic odor. It is primarily used in skin and sun care applications as a UV-A absorber. It offers broad-spectrum protection by blocking UV-A/UV-B radiations when used in conjunction with recognized UV-B absorbers such as OMC. Avobenzone is found in everyday cosmetic preparations like creams and lotions and provides essential sun protection in sunscreen formulations.
How does Avobenzone contribute to sun protection formulations?
Avobenzone is utilized in sunscreen preparations due to its ability to provide broad-spectrum protection against both UV-A and UV-B rays. When included with adequate concentrations of both UV-A and UV-B filters, Avobenzone helps achieve excellent sun protection, preventing skin damage from harmful UV radiation.
Can Avobenzone be used in hair care products?
Yes, Avobenzone is used in the formulation of protective hair care products. It acts as a photo-antioxidant, offering protection to hair care formulations from photo-oxidation, which can be caused by exposure to sunlight.
What are the solubility properties of Avobenzone?
Avobenzone is insoluble in most standard solubilizers or bases, including water, glycerin, mineral oil, and alcohol. However, it is soluble in isopropyl myristate and isopropyl adipate, making it important to consider compatible solvents during formulation development.
In what types of cosmetic products is Avobenzone recommended for use?
Avobenzone is a recommended ingredient for a variety of cosmetic and skincare products. These include medicated skin care and protective skin tone preparations, makeup creams and lotions, hand and face creams, moisturizing creams, and anti-aging formulations, due to its beneficial properties in sun protection and skin care.
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