Appearance：White or pale yellow crystalline powder 

Identification：A: Infrared Absorption<197k>

                        B: Ultraviolet Absorption 197U
Absorptivities at 360 nm do not differ by more than 3.0%

Assay (GC)：95.0%~105.0% 

Loss on drying：0.5% max 

Melting Point：81°C~86°C 

Specific Extinction(E1%, 1cm at 357nm)：1100.0 ~ 1180.0 

Impurity (GC)：Individual impurity: 3.0% max  

Total impurity: 4.5% max 

Residual solvents：Methanol: 3000ppm max

Molecular Formula: C15H22O3

Structural Formula:

1. Highly efficient UVA absorbent. 

2. Combined with efficient UVB sunscreen, it can provide  broad-spectrum protection and effectively improve SPF. 

3. Maximum addition amount: 3% (US, CA) 5% (EU, CN,  AUS, KR) 10% (JP).

• Mainly used for sunscreen and daily skin care. 

• Max concentration：3%(US)       5%(EU,AUS)       10%(JP)