Metformin Impurity 26 CAS 32161-06-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.32161-06-1
Molecular FormulaC7H11NO2
Molecular Weight141.17 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Metformin Impurity 26 CAS 32161-06-1 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 141.17 g/mol gives Metformin Impurity 26 distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

Metformin Impurity 26 (CAS 32161-06-1) is a certified pharmaceutical impurity reference standard with the molecular formula C7H11NO2 and a molecular weight of 141.17 g/mol.

Owing to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage, Metformin Impurity 26 is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 141.17 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.

CATO manufactures Metformin Impurity 26 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC7H11NO2
Molecular Weight141.17 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in methanol, acetonitrile, DMSO, water (slightly soluble)
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)3.0
UV AbsorptionUV-absorbing
CAS Registry Year (est.)1966
Nitrogen Atoms1

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