Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) CAS 2887-91-4

Description

Compared with other compounds in its class, the molecular weight of 301.81 g/mol gives Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) (CAS 2887-91-4) is a certified pharmaceutical impurity reference standard with the molecular formula C18H19NOHCl and a molecular weight of 301.81 g/mol.

Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) (C18H19NOHCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 Doxepin EP Impurity C HCl(Mixture of Z and E Isomers) 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

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