Neostigmine Impurity 23 CAS 463-72-9

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.463-72-9
Molecular FormulaCH2ClNO
Molecular Weight79.49 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Neostigmine Impurity 23 CAS 463-72-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 79.49 g/mol gives Neostigmine Impurity 23 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Neostigmine Impurity 23 (CAS 463-72-9), a pharmacopoeial impurity reference standard (molecular formula CH2ClNO, MW 79.49 g/mol) used for the identification and quantification of trace impurities in APIs.

Based on its molecular formula CH2ClNO, Neostigmine Impurity 23 contains a hydroxyl group, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 79.49 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.

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.

CATO manufactures Neostigmine Impurity 23 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaCH2ClNO
Molecular Weight79.49 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1957
Halogen ContentCl-containing
Nitrogen Atoms1

Related Neostigmine Standards

Recommended Standards

Why CATO?