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Reference Material

This certificate is designed in accordance withISO 17034andISO Guide 31. This reference material (RM) was designed,produced and verified in accordance withISO/IEC 17025,ISO 17034and a registered quality management systemISO 9001.

Product NameImidazosagatriazinone in Methanol,100μg/mL

Part Number92635a

Lot Number21120590

CAS No.139756-21-1

Mol. FormulaC17H20N4O2

Mol. Weight312.37__________________

Storage Temp(-18±5)�?Keep in the shade

QC Test Results
Item	Test Results
Analysis method	HPLC/DAD
Concentration	100μg/mL
Uncertainty	3%
Expiry Date	2022-Jul-06

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance withISO 17034with an 95% confidence level (k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of preparation, purity of neat materials, homogeneity, stability testing.