Certificate of AnalysisProduct Name:GW-1100Formula:MolWeight:CAS No.: Cat. No.:Batch No:Test Date:Retest Date:C27H25FN4O4S520.58306974-70-9HY-50691047372011-10-222013-10-21ItemsAppearanceSpecificationsWhite to off-white solid1H NMR spectrum of sample corresponds to that of standardpreparationMass spectrum of sample corresponds to that of standardpreparation ResultsConformsConformsIdentificationConformsThe retention time of the major peak in the chromatogram ofsample corresponds to that in the chromatogram of standardpreparationPurity by HPLCNLT 98.0%ConclusionThe product tested complies with the specifications.Conforms98.13%Storage condition: Store in a tightly closed container, in a cool and dry place.Caution: Not fully tested. For research purposes onlyMedchemexpress LLCwww.medchemexpress.com 18 Wilkinson Way, Princeton, NJ 080,USAEmail: info@medchemexpress.com Web: www.medchemexpress.com