2,4-Dihydroxybenzophenone CAS NO.131-56-6

Chemical Name: 2,4-Dihydroxy Benzophenone ( Benzophenone-1) Chemical Type: Ultraviolet absorbers CASNO: 131-56-6 Specification: Molecular Form…

Chemical Name: 2,4-Dihydroxy Benzophenone ( Benzophenone-1) Chemical Type: Ultraviolet absorbers CASNO: 131-56-6 Specification: Molecular Formula: C13H10O3 Molecular Weight: 214.22 Appearance: White or Light yellow crystalline powder Assay: 99.0% min Loss on drying: 0.2% max. Melting point: 142.0??-146.0 ?? 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