Thiotepa Impurity 8 CAS CATO-C4X-21568

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.CATO-C4X-21568
Molecular FormulaC12H26N6OP2S2
Molecular Weight396.45 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Thiotepa Impurity 8 CAS CATO-C4X-21568 chemical structure

Description

CATO supplies Thiotepa Impurity 8 (CAS CATO-C4X-21568), a pharmacopoeial impurity reference standard (molecular formula C12H26N6OP2S2, MW 396.45 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to an amide group, sulfur-containing functionality, organophosphorus functionality, a hydroxyl group, an ether linkage, Thiotepa Impurity 8 is typically white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 396.45 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 FormulaC12H26N6OP2S2
Molecular Weight396.45 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
Nitrogen Atoms6
Sulfur Atoms2

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