Amifostine Impurity 1 CAS 23545-42-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.23545-42-8
Molecular FormulaC5H13BrN2
Molecular WeightN/A
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Amifostine Impurity 1 CAS 23545-42-8 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.

Amifostine Impurity 1 (CAS 23545-42-8) is a certified pharmaceutical impurity reference standard with the molecular formula C5H13BrN2HBr and a molecular weight of 261.99 g/mol.

Based on its molecular formula C5H13BrN2HBr, Amifostine Impurity 1 contains bromine substitution; these features give the compound characteristic molecular-ion distribution patterns in mass spectrometry. The molecular weight of 261.99 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 2*HBr
Molecular Weight261.99 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)-1.0
CAS Registry Year (est.)1963
Halogen ContentBr-containing
Nitrogen Atoms2

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