Tadalafil Impurity 79 CAS 38082-70-1

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.38082-70-1
Molecular FormulaC6H12N2O3
Molecular Weight160.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Tadalafil Impurity 79 CAS 38082-70-1 chemical structure

Description

As a certified reference material (CRM), Tadalafil Impurity 79 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.

CATO supplies Tadalafil Impurity 79 (CAS 38082-70-1), a pharmacopoeial impurity reference standard (molecular formula C6H12N2O3, MW 160.17 g/mol) used for the identification and quantification of trace impurities in APIs.

Tadalafil Impurity 79 (C6H12N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

Physical & Chemical Properties

Molecular FormulaC6H12N2O3
Molecular Weight160.17 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1967
Nitrogen Atoms2

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