Dapoxetine Impurity 103 CAS 1135682-44-8

Purity ≥95%In StockPharmacopoeial Impurity Standards
CAS No.1135682-44-8
Molecular FormulaC21H23NO
Molecular Weight305.41 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dapoxetine Impurity 103 CAS 1135682-44-8 chemical structure

Description

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.

Dapoxetine Impurity 103 (CAS 1135682-44-8) is a certified pharmaceutical impurity reference standard with the molecular formula C21H23NO and a molecular weight of 305.41 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Dapoxetine Impurity 103 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 305.41 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

CATO manufactures Dapoxetine Impurity 103 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 FormulaC21H23NO
Molecular Weight305.41 g/mol
AppearancePale yellow to yellow crystalline powder
Purity≥95%
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1989
Nitrogen Atoms1

Related Dapoxetine Standards

Recommended Standards

Why CATO?