2-(4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid CAS 90222-68-7

Purity 97%+In StockPharmaceutical Standards
CAS No.90222-68-7
Molecular FormulaC8H9NO4
Molecular Weight183.16 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid CAS 90222-68-7 chemical structure

Description

The occurrence of 2-(4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 2-(4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid (CAS 90222-68-7), a certified reference material (molecular formula C8H9NO4, MW 183.16 g/mol) for analytical method development and quality control.

2-(4-Hydroxy-6-methyl-2-oxo-1,2-dihydropyridin-1-yl)acetic acid (C8H9NO4) 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. 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 is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

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 FormulaC8H9NO4
Molecular Weight183.16 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Nitrogen Atoms1

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