Quetiapine Impurity N3 CAS 102893-57-2

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.102893-57-2
Molecular FormulaC25H20N2OS2
Molecular Weight428.57 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Quetiapine Impurity N3 CAS 102893-57-2 chemical structure

Description

Quetiapine Impurity N3 (CAS 102893-57-2) is a certified pharmaceutical impurity reference standard with the molecular formula C25H20N2OS2 and a molecular weight of 428.57 g/mol.

Structurally, Quetiapine Impurity N3 (C25H20N2OS2) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 17.0, corresponding to approximately 17 ring(s) or double-bond equivalent(s). With a molecular weight of 428.57 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 Quetiapine Impurity N3 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 FormulaC25H20N2OS2
Molecular Weight428.57 g/mol
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)17.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms2
Sulfur Atoms2

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