UV absorber Pale Greenish Yellow Crystalline Powder Benzophenone-3

_{Appearance:Pale greenish yellow crystalline powder}

_{Identification:IR: Identical to IR Spectrum of standard.}

_{HPLC: The retention time of the major peak of the Sample solution corresponds to that of the Standard solution, as obtained in the assay.}

_{Assay(HPLC):97.0%~103.0%}

_{Congealing Temperature:≥62.0ºC}

_{Loss and Drying:≤0.20%}

_{Impurities(HPLC):Total Impurities: ≤1.0%}

                             _{Benzophenone-1: ≤0.2%}

                             _{Single largest unspecified impurity: ≤0.10%}

_{Residual Solvents:Ethanol ≤ 5000ppm}

_{Odor:Similar in character and intensity to standard,very slight odor.}

_{Specific Extinction(1%,1cm):E288 ≥ 630}

                                                 _{E325 ≥ 410}

_{Melting Point:62.0ºC~65.0ºC}

_{Heavy Metals (Pb):≤ 5 ppm}

_{Gardner Color:≤ 4.0}

_{Molecular Formula:}C₁₄H₁₂O₃
Storage:Must be stored in closed containers in dry cool conditions