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杭 州 林 格 贝 科 技 限 公 司H A N G Z H O U L I N G E B A T E C H N O L O G Y C O., L T D.H A N G Z H O U L I N G E B A T E C H N O L O G Y C O., L T D.

CERTIFICATE OF ANALYSIS

Product: Benzophenone-3 Batch No: 20120520

Quantity: 1000KGS Specification: USP34

Date of Manufacturing: 05/20/2012 Date of Expiry: 05/19/2014

Items Specifications Results

Appearance Pale greenish yellow crystalline powder Pale greenish yellow

crystalline powder

Identification IR: Identical to IR Spectrum of standard Conform

UV: Differs from USP Ref. Std. by ≦3% @287nm Conform

Assay(UV) 97.0-103.0% 99.7%

Congealing Temperature ≧62.0℃ 62.5℃

Loss on drying ≦2.0% 0.14%

Impurities(HPLC) Total Impurities: ≦1.0% 0.2%

Benzophenone-1: ≦0.2% 0.03%

Single largest unspecified impurity: ≦0.1% 0.04%

Residual solvents Ethanol: ≦5000ppm 705ppm

Conclusion: This batch of Benzophenone-3 complies with the USP34 specification.

Checker: Date: 05/20/2012 Chief of Dept: Date: 05/21/2012