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Certification of Analysis

Product Name	4-Hydroxy-2-methylbenzeneboronic acid
CAS No	493035-82-8
Catalog No	SC-65655
Quantity	15g
Batch No	20130413
Product Date	2013.04.13
Date of analysis	2013.04.13

Items of analysis	Specification	Results
Appearance	White or off-white powder	White powder
Assay	≥98.0%	99.4.0%
loss on drying	≤0.5%	0.31%
Remark	Declaration: For laboratory use by technically qualified individual only
Conclusion	Conform with specification

Analyst: Jack Fu Check: Anne Zhang Date: 2013-04-13