Temozolomide Impurity 23 CAS 360-97-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.360-97-4
Molecular FormulaC4H6N4O
Molecular Weight126.12 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Temozolomide Impurity 23 CAS 360-97-4 chemical structure

Description

CATO supplies Temozolomide Impurity 23 (CAS 360-97-4), a pharmacopoeial impurity reference standard (molecular formula C4H6N4O, MW 126.12 g/mol) used for the identification and quantification of trace impurities in APIs.

Owing to an amide group, a hydroxyl group, an ether linkage, Temozolomide Impurity 23 is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 126.12 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).

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Temozolomide Impurity 23 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 FormulaC4H6N4O
Molecular Weight126.12 g/mol
Purity>95%
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)4.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1957
Nitrogen Atoms4

Related Temozolomide Standards

Recommended Standards

Why CATO?