Tamoxifen Impurity 21 CAS CATO-C4X-123321

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-123321
Molecular FormulaC23H22O
Molecular Weight314.42 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tamoxifen Impurity 21 CAS CATO-C4X-123321 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 314.42 g/mol gives Tamoxifen Impurity 21 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Tamoxifen Impurity 21 (CAS CATO-C4X-123321) is a certified pharmaceutical impurity reference standard with the molecular formula C23H22O and a molecular weight of 314.42 g/mol.

Structurally, Tamoxifen Impurity 21 (C23H22O) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 314.42 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 Tamoxifen Impurity 21 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 FormulaC23H22O
Molecular Weight314.42 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)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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