Zopiclone impurity 28 CAS 69433-07-4

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.69433-07-4
Molecular FormulaC5H9ClN2O
Molecular Weight148.59 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Zopiclone impurity 28 CAS 69433-07-4 chemical structure

Description

The occurrence of Zopiclone impurity 28 is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Zopiclone impurity 28 (CAS 69433-07-4) is a certified pharmaceutical impurity reference standard with the molecular formula C5H9ClN2O and a molecular weight of 148.59 g/mol.

Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, Zopiclone impurity 28 is typically white to off-white liquid. Its solid-state physicochemical attributes — including a molecular weight of 148.59 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

CATO manufactures Zopiclone impurity 28 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 FormulaC5H9ClN2O
Molecular Weight148.59 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)2.0
CAS Registry Year (est.)1976
Halogen ContentCl-containing
Nitrogen Atoms2

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