sertifikat benzofenon
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sertifikat analisis benzofenonTRANSCRIPT
E-mail: [email protected]
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地址: 中国浙江杭州新青年广场 1-913室 Address: Office 1-913, NewYouth Plaza, Gongshu District, Hangzhou, Zhejiang, P.R. China.
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