Paclitaxel Impurity 61 CAS CATO-C4X-184261

Purity ≥90%In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-184261
Molecular FormulaC45H55NO14
Molecular Weight833.92 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Paclitaxel Impurity 61 CAS CATO-C4X-184261 chemical structure

Description

The occurrence of Paclitaxel Impurity 61 is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

Paclitaxel Impurity 61 (CAS CATO-C4X-184261) is a certified pharmaceutical impurity reference standard with the molecular formula C45H55NO14 and a molecular weight of 833.92 g/mol.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Paclitaxel Impurity 61 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 833.92 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

As a certified reference material (CRM), Paclitaxel Impurity 61 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC45H55NO14
Molecular Weight833.92 g/mol
Purity≥90%
StorageStore at room temperature, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)19.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
Nitrogen Atoms1

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