Tolterodine impurity 34 CAS CATO-C4X-176734

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-176734
Molecular FormulaC18H20O3
Molecular Weight284.35 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tolterodine impurity 34 CAS CATO-C4X-176734 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 284.35 g/mol gives Tolterodine impurity 34 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Tolterodine impurity 34 (CAS CATO-C4X-176734), a pharmacopoeial impurity reference standard (molecular formula C18H20O3, MW 284.35 g/mol) used for the identification and quantification of trace impurities in APIs.

The molecular framework of Tolterodine impurity 34 (C18H20O3) is characterized by a steroid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Tolterodine impurity 34 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 FormulaC18H20O3
Molecular Weight284.35 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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