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Reference Material

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

Product Name Cefixime

Product Code76722

Lot Number21090155

CAS No.79350-37-1

Mol. Weight453.45

Mol. FormulaC16H15N5O7S2

Melting PointN/A

Expiry Date2023-Sep-06

Boiling pointN/A

AppearanceWhite to Off-White Solid

Storage Temp-18℃,Keep in the shade

C E R T I F I E D

Purity

99.8%

C E R T I F I E D

Expanded Uncertainty (U)

0.5%

Uncertainty

The certified value(s) and uncertainty(ies) are determined in accordance with ISO 17034 with an 95% confidence level(k=2). Uncertainty is based on the Total Combined Uncertainty, including uncertainties of characterisation, homogeneity and stability testing. Stability values are based on real evidence opposed to simulation.

Traceability

The balances used for gravimetric measurements are calibrated with weights traceable to the national standards. The calibration of the balances is verified annually by an external accredited calibration service. This analysis method has been verified using an approach consistent with ISO 17034:2016 & ISO 17025:2017.