Product Introduction:

Chemical Name: Avobenzone
Synonym: Butyl methoxydibenzoylmethane
Avobenzone CAS No.: 70356-09-1
Avobenzone Molecular Formula: C20H22O3
Molecular Weight: 310.39 g/mol
EC No.: 274-581-6
Application: A highly effective UVA sunscreen agent

Avobenzone Structure

Appearance: White to pale yellow crystalline powder
Identification: A. IR <197k>: Sample IR spectrum matches that of the reference standard
B. UV <197u>: Absorbance coefficient at 360 nm differs from the reference         standard by no more than 3.0%
Assay (GC): 95.0%–105.0%
Loss on drying: 0.5% max
Melting point: 81°C–86°C
Specific absorbance (E1%, 1cm, 357nm): 1100.0–1180.0
Impurities (GC): Individual impurity: 3.0% max
Total impurities: 4.5% max
Solubility: Insoluble in water; soluble in isopropanol, octyldodecyl oleate, caprylic/capric triglyceride, and other oils
Absorption characteristics: Strong absorption in the UVA range; maximum absorption wavelength is approximately 357 nm

UV absorption curve:

Highassay’s Avobenzone Features:

• Highly efficient UVA absorber
• Provides broad-spectrum protection and effectively boosts SPF when combined with high-efficiency UVB filters
• Maximum usage levels: 3% (US, CA); 5% (EU, AUS, KR); 10% (JP)