Cosmate®AVB ,Avobenzone,Butyl Methoxydibenzoylmethane. It is a derivative of dibenzoyl methane. A wider range of ultraviolet light wavelengths can be absorbed by avobenzone. It is present in a lot of broad-range sunscreens that are commercially available. It functions as a sunblock. A topical UV protector with a broad spectrum, avobenzone blocks UVA I, UVA II, and UVB wavelengths, reducing the damage that UV rays can do to the skin.
Avobenzone (BMDM, Butyl methoxydibenzoylmethane) is a sun screen chemical that offers broad-range protection against UVA rays. Avobenzone absorbs both UV-(380-315 nm that is associated with long term skin damage) and UV-B (315-280 nm that causes sunburn) rays. Avobenzone is known as one of the most effective sunscreen ingredient.
Key Technical Parameters:
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Appearance
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White to pale yellow powder
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Identity(IR)
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Matches reference spectrum
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Identity(Retention time)
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Matches reference retention time
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UV specific extinction(E1%1cm at 357 nm in ethanol)
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1100~1180
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Melting point
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81.0℃~86.0℃
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Loss on drying (%)
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0.50max
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Chromatographic purity GC
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Each impurity(%)
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3.0max
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Total impurities(%)
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4.5max
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Assay(%)
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95.0~105.0
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Residual solvents
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Methanol(ppm)
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3,000max
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Toluene(ppm)
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890max
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Microbial purity
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Total amount of aerobe
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100 CFU/g max
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Total yeast and moulds
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100CFU/g max
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Applications: Sunscreens, Personal Care products, Sun care, Baby Sun care, Daily skin care, Decorative cosmetics with sun protection, Broad spectrum UV-A filter.
