Lurbinectedin Impurity 6 CAS 3054883-63-2

Purity 95%In StockPharmacopoeial Impurity Standards
CAS No.3054883-63-2
Molecular FormulaC39H42N4O9S
Molecular Weight742.84 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Lurbinectedin Impurity 6 CAS 3054883-63-2 chemical structure

Description

CATO supplies Lurbinectedin Impurity 6 (CAS 3054883-63-2), a pharmacopoeial impurity reference standard (molecular formula C39H42N4O9S, MW 742.84 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Lurbinectedin Impurity 6 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 742.84 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.

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 FormulaC39H42N4O9S
Molecular Weight742.84 g/mol
Purity95%
StorageStore in a cool place (≤25°C), protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)21.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2005
Nitrogen Atoms4
Sulfur Atoms1

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