Dapoxetine Impurity 26 CAS 147199-39-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.147199-39-1
Molecular FormulaC20H21NO
Molecular Weight291.39 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Dapoxetine Impurity 26 CAS 147199-39-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 291.39 g/mol gives Dapoxetine Impurity 26 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Dapoxetine Impurity 26 (CAS 147199-39-1) is a certified pharmaceutical impurity reference standard with the molecular formula C20H21NO and a molecular weight of 291.39 g/mol.

Structurally, Dapoxetine Impurity 26 (C20H21NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 291.39 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).

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 Dapoxetine Impurity 26 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 FormulaC20H21NO
Molecular Weight291.39 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
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.)1999
Nitrogen Atoms1

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