Avobenzone
Avobenzone (BMDM, Butyl methoxydibenzoylmethane) is a sun-A 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:
| Appearance |
White to pale yellow powder |
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| Identity(IR)USP<197> |
Matches reference spectrum |
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| Identity(Retention time) USP<621> |
Matches reference retention time |
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| UV specific extinction(E1%1cm at 357 nm in ethanol)
Spectrophotometry USP<197U> |
1100~1180 |
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| Melting point USP<741> |
81.0℃~86.0℃ |
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| Loss on drying (%) USP<731> |
0.50max |
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| Chromatographic purity GC USP<621> | Each impurity(%) |
3.0max |
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| Total impurities(%) |
4.5max |
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| Assay(%) GC USP<621> |
95.0~105.0 |
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| Residual solvents | Methanol(ppm) |
3000max |
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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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