UV Absorbers

Avobenzone

LGB-AVB
CAS No.: 70356-09-1
Assay ：98%
White to off-white crystalline powder
Product description: Avobenzone
INQUIRY

LGB-AVB Avobenzone

Model No. :LGB-AVB
Color :White to off-white crystalline powder
Port Of Dispatch :Shanghai
Payment :FOB
Original Region :China
Lead Time :7days

INCI Name:	Avobenzone
Synonyms:	4-tert-Butyl-4'-methoxy-dibenzoylmethane; 1-(4-tert-Butylphenyl)-3-(4-methoxyphenyl)1,3-propanedione); 1-(4-(1,1-Dimethylethyl)phenyl)-3-(4-methoxyphenyl)-1,3-propanedione
CAS No.:	70356-09-1
EINECS No.:	274-581-6
Molecular Formula:	C20H22O3
Molecular Weight:	310.39

Solubility: Insoluble in water. Soluble in oil.

Property	Specification
Appearance	White to off-white crystalline powder
Identification	A: Infrared Absorption 197K
Identification	B: Ultraviolet Absorption 197U Absorptivities at 360nm do not differ by more than 3.0%
Assay	95.0%-105.0%
Melting point	81℃-86℃
Loss on drying	Max. 0.5%
Chromatographic purity	Any individual impurity: Max. 3.0%
Chromatographic purity	The sum of all of the impurities: Max. 4.5%
Specific Gravity	1.037-1.041
Acidity(mg KOH/g)	Max. 1.0

Applications:

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.

Stability and Storage: Stable under normal conditions.

Package: 25kgs drum

Shelf life: 24 months