Pitavastatin Impurity 135 CAS CATO-C4X-1037135

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-1037135
Molecular FormulaC22H38O9
Molecular Weight446.53 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Pitavastatin Impurity 135 CAS CATO-C4X-1037135 chemical structure

Description

The occurrence of Pitavastatin Impurity 135 is closely related to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies Pitavastatin Impurity 135 (CAS CATO-C4X-1037135), a pharmacopoeial impurity reference standard (molecular formula C22H38O9, MW 446.53 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, Pitavastatin Impurity 135 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 446.53 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).

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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC22H38O9
Molecular Weight446.53 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature, keep sealed and dry
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present

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