2,2'-((azanediylbis(ethane-2,1-diyl))bis(azanediyl))diacetic acid CAS 98487-76-4

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.98487-76-4
Molecular FormulaC8H17N3O4
Molecular Weight219.24 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

2,2'-((azanediylbis(ethane-2,1-diyl))bis(azanediyl))diacetic acid CAS 98487-76-4 chemical structure

Description

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.

CATO supplies 2,2'-((azanediylbis(ethane-2,1-diyl))bis(azanediyl))diacetic acid (CAS 98487-76-4), a pharmacopoeial impurity reference standard (molecular formula C8H17N3O4, MW 219.24 g/mol) used for the identification and quantification of trace impurities in APIs.

2,2'-((azanediylbis(ethane-2,1-diyl))bis(azanediyl))diacetic acid (C8H17N3O4) 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.

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 FormulaC8H17N3O4
Molecular Weight219.24 g/mol
Purity>95%
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityLight-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1985
Nitrogen Atoms3

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