Avobenzone
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 |
White to pale yellow powder |
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Identity(IR) |
Matches reference spectrum |
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Identity(Retention time) |
Matches reference retention time |
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UV specific extinction(E1%1cm at 357 nm in ethanol) |
1100~1180 |
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Melting point |
81.0℃~86.0℃ |
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Loss on drying (%) |
0.50max |
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Chromatographic purity GC |
Each impurity(%) |
3.0max |
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Total impurities(%) |
4.5max |
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Assay(%) |
95.0~105.0 |
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Residual solvents |
Methanol(ppm) |
3,000max |
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Toluene(ppm) |
890max |
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Microbial purity |
Total amount of aerobe |
100 CFU/g max |
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Total yeast and moulds |
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.
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