Regadenoson Impurity 9 CAS 927806-95-9

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.927806-95-9
Molecular FormulaC7H11O5
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Regadenoson Impurity 9 CAS 927806-95-9 chemical structure

Description

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

CATO supplies Regadenoson Impurity 9 (CAS 927806-95-9), a pharmacopoeial impurity reference standard (molecular formula C7H11O5Na, MW 198.15 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Regadenoson Impurity 9 (C7H11O5Na) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.5, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 198.15 g/mol, it falls into the medium-molecular-weight range.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC7H11O5 Na
Molecular Weight198.15 g/mol
Purity97%+
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.5
CAS Registry Year (est.)1987

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