Product name: UV Absorber Benzophenone-4 Synonyms: UV 284;2-hydroxy-4-methoxybenzophenone-5-sulfonic acid Molecular Formula: C14H12O6S Structural formula: Molecular Weight: 308.31 CAS No.: 4065-45-6 Appearance: White or light yellow crystalline powder Assay: 99% min. Heavy metals: 5ppm max. Colour (Gardner-10% aqueous solution): 1.0 max. Loss on drying: a.5.0% max b. 3.0% max PH value: 1.2-2.2 UV Absorbance Max at 285nm: 460 min. UV Absorbance Max at 325nm : 290 min. Melting Point :140oC min. Turbidity in water (EBC):1.5 max Applications: UV Absorber Benzophenone-4 is mainly used in cosmetics. Package: Packed in 25kgs fiber drum with double PE liners, or according to customers' request. Storage: Preserve in tight, light-resistent containers