Ethosuximide impurity 01 CAS 4172-97-8

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.4172-97-8
Molecular FormulaC7H10N2
Molecular Weight122.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Ethosuximide impurity 01 CAS 4172-97-8 chemical structure

Description

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.

Ethosuximide impurity 01 (CAS 4172-97-8) is a certified pharmaceutical impurity reference standard with the molecular formula C7H10N2 and a molecular weight of 122.17 g/mol.

Based on its molecular formula C7H10N2, Ethosuximide impurity 01 contains a nitrile group, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 122.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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 FormulaC7H10N2
Molecular Weight122.17 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)4.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2

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