Betahistine Impurity 18 CAS 24028-46-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.24028-46-4
Molecular FormulaC8H20N4
Molecular Weight172.27 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Betahistine Impurity 18 CAS 24028-46-4 chemical structure

Description

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.

Betahistine Impurity 18 (CAS 24028-46-4) is a certified pharmaceutical impurity reference standard with the molecular formula C8H20N4 and a molecular weight of 172.27 g/mol.

Owing to an organic framework, Betahistine Impurity 18 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 172.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

Physical & Chemical Properties

Molecular FormulaC8H20N4
Molecular Weight172.27 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1963
Nitrogen Atoms4

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