Avobenzone/AVB

Multivalent metal cations should be avoided as they may form discolo-rations (E.g. Fe) or crystals due to lower solubility of the complexes (e.g.Al and Mg). Al coated Titanium Dioxides may lead to crystals. The combination of Avobenzone/AVB and Zinc Oxide can interact to form a complex which may precipitate out. Avobenzone/AVB is incompatible with formaldehyde donators which are mainly used as preservatives.

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КАС НЕТ.: 70356-09-1

Химияаль Формула: С20ЧАС22О3

Molecular Weight:310.39

ИИНЭКС НЕТ.: 274-581-6

анализ: 99,0% мин.

Появление: Кристаллический порошок от белого до светло-желтого цвета.

Avobenzone/AVB Application:

Avobenzone/AVB is oil soluble, effective UVA absorber. Adequate solubility in the formulation must be ensured in order to avoid recrystallization during storage. To maximize utilization and high performance, AVB should be properly photo-stabilized. Excellent material for stabilizations is OCT. Other additional options would be 3-(4-Methylbenzyliden) Camphor or BP-3; Use a chelating agent like EDTA.

Нет Test items Спецификация
1 Появление White to pale yellow powder
2 Identity (IR) USP<197K> Matches reference spectrum
 

3

Identity (Retention time) USP<621> Matches reference

retention time

 

4

UV specific extinction:

(E 1%,1 cm at 357 nm in ethanol)

Spectrophotometry USP<197U>

1100-1180
5 Melting point USP<741> 81.0℃~86.0℃
6 Loss on drying(%) USP<731) 0.5 max
 

7

Chromatographic

purity

GC USP<621>

Each impurity (%) 3.0 max
    Total impurities(%) 4.5 max
8 Assay(%)GC USP<621> 95.0~105.0
9 Residual solvents GC USP<467> Methanol (ppm) 3000  max
    Toluene (ppm) 890  max
 

 

10

Microbial purity Total amount of aerobe 100 CFU/g max
    Total yeast and moulds 100 CFU/g max

Упаковка: 20 кг/коробка или 25 кг/коробка

 

Регуляторный они естьтот Макс концентрация:

АСЕАН 5%, Китай 5%, Европа 5%, Япония 10%, Южная Африка 5%, США3%

 

Срок годности: 3 года