Memantine Impurity 34 CAS 702-77-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.702-77-2
Molecular FormulaC11H17Br
Molecular Weight229.16 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Memantine Impurity 34 CAS 702-77-2 chemical structure

Description

Memantine Impurity 34 (CAS 702-77-2) is a certified pharmaceutical impurity reference standard with the molecular formula C11H17Br and a molecular weight of 229.16 g/mol.

Owing to bromine substitution, Memantine Impurity 34 is typically white to off-white low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 229.16 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.

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.

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 FormulaC11H17Br
Molecular Weight229.16 g/mol
Purity>95%
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Halogen ContentBr-containing

Related Memantine Standards

Recommended Standards

Why CATO?