UV ABSORBER: UV-9

Chemical name	2-Hydroxy-4-methoxy benzophenone
CAS No.	121-57-7	Against	Cyasorb UV 9
Formula	C14H12O3	Molecular weight	228.25
Introduction	UV-9 is benzophenone type UV absorber. It is compatible with many plastics. UV-9 particularly recommended for using in cosmetics. It is also effective to protect PVC and unsaturated polyester resins.
Physical properties	Molecular Weight: 228 Appearance: slightly yellowish crystal powder Purity: 99% min ( HPLC ) Ash content: 0.1% max. Melting Point: 62 -64 Deg.C LD 50,one single oral dose: >5,000 mg/kg(In rats & mice)
Advantage	• Very strong UV absorptivity in the region below 350 nm. • Readily compatible with many plastics. • Provide no effect on initial color of substrates.
Applications	1. Cosmetics: 0.1~6.0 wt% 2. PVC : 0.2~0.5 wt% based on polymer weight. 3. Unsaturated polyester: 0.2~0.5 wt% based on polymer weight. 4. Polyacrylate: 0.2~0.5 wt% based on polymer weight.
Toxicity & Safety	UV-9 can be safely handled without irritation caused to the skin.
Package	In 25 kg carton drum with inner plastic bag.
Storage	In a closed system and dry, dark place without any light exposure.