Flunarizine Impurity 19 CAS 18903-04-3

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.18903-04-3
Molecular FormulaC8H16N2O
Molecular Weight156.23 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Flunarizine Impurity 19 CAS 18903-04-3 chemical structure

Description

CATO manufactures Flunarizine Impurity 19 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.

CATO supplies Flunarizine Impurity 19 (CAS 18903-04-3), a pharmacopoeial impurity reference standard (molecular formula C8H16N2O, MW 156.23 g/mol) used for the identification and quantification of trace impurities in APIs.

Structurally, Flunarizine Impurity 19 (C8H16N2O) contains an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 2.0, corresponding to approximately 2 ring(s) or double-bond equivalent(s). With a molecular weight of 156.23 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC8H16N2O
Molecular Weight156.23 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1962
Nitrogen Atoms2

Related Flunarizine Standards

Recommended Standards

Why CATO?