Fasudil Impurity 23 CAS CATO-C4X-136523

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-136523
Molecular FormulaC5H13BrN2
Molecular Weight181.07 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Fasudil Impurity 23 CAS CATO-C4X-136523 chemical structure

Description

Owing to bromine substitution, Fasudil Impurity 23 is typically white to off-white crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 181.07 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Fasudil Impurity 23 (CAS CATO-C4X-136523) is a certified pharmaceutical impurity reference standard with the molecular formula C5H13BrN2 and a molecular weight of 181.07 g/mol.

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.

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 FormulaC5H13BrN2
Molecular Weight181.07 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)0.0
Halogen ContentBr-containing
Nitrogen Atoms2

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