Ibandronic Impurity 28 CAS 128202-57-3

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.128202-57-3
Molecular FormulaC4H13NO7P2
Molecular Weight249.10 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ibandronic Impurity 28 CAS 128202-57-3 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.

Ibandronic Impurity 28 (CAS 128202-57-3) is a certified pharmaceutical impurity reference standard with the molecular formula C4H13NO7P2 and a molecular weight of 249.10 g/mol.

The molecular framework of Ibandronic Impurity 28 (C4H13NO7P2) is characterized by a carbohydrate-derived structure, an amide group, a phosphate ester group. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

As a certified reference material (CRM), Ibandronic Impurity 28 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC4H13NO7P2
Molecular Weight249.10 g/mol
Purity≥95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)-1.0
CAS Registry Year (est.)1993
Nitrogen Atoms1

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