Benzophenone-1 Chemical Name: 2, 4-Dihydroxy Benzophenone Molecular Formula: C13H10O3 Molecular Weight: 214.22 CAS No.: 131-56-6 ? Specification: Appearance: White or Light yellow crystalline powder Assay: 99.0% min Loss on drying: 0.2% max. Melting point: 142C-146C Specific Extinction (E290): 630 min. Gardner color: 3.0 max. pH: 6 Burnt Residue: 0.5 max Heavy Metals: 5 ppm max Package: 25kg cardboard drum or 20kg carton Storage: Preserve in tight, light-resistent containers Shelf Life: 2 Years ? UV-light absorber series They are kind of broad-spectrum ultraviolet absorber, owns characteristics such as: High absorption efficiency, innocuity, good stability to heat, light. As the type I sunscreen agent approved by FDA in the US, it can absorb UV-A and UV-B at the same time. It is widely used in the sunfast cream, sunfast milk, sunfast latex, sunfast oil etc.
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