Avobenzone having phenyl ketone group and sterically hindered group in one molecule, is an oil soluble sunscreen agent that absorbs a wider range of UV wavelengths. It absorbs both UV-A (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.
Specification:
Property |
Specification |
Appearance |
White to off-white crystalline powder |
Identification |
A: Infrared Absorption 197K |
B: Ultraviolet Absorption 197U Absorptivities at 360nm do not differ by more than 3.0% |
|
Assay |
95.0%-105.0% |
Melting point |
81°C-86°C |
Loss on drying |
Max. 0.5% |
Chromatographic purity |
Any individual impurity: Max. 3.0% |
The sum of all of the impurities: Max. 4.5% |
|
Specific Gravity |
1.037-1.041 |
Acidity(mg KOH/g) |
Max. 1.0 |
Packaging details:
Packaging details: |
25kg/drum with double plastic bags inside; packed in a cardboard drum or fiber HDPE drum. |
Storage: |
Stored in a clean, cool, dry area; keep away from moisture and strong, direct light/heat |
Shelf Life: |
5 years if sealed and store away from direct sun light. |