3-Cyclopentyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid CAS 1334148-01-4

Purity 97%+In StockPharmaceutical Standards
CAS No.1334148-01-4
Molecular FormulaC12H12N2O3
Molecular Weight232.24 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Cyclopentyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid CAS 1334148-01-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 232.24 g/mol gives 3-Cyclopentyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-Cyclopentyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid (CAS 1334148-01-4) is a high-purity analytical reference standard with the molecular formula C12H12N2O3 and a molecular weight of 232.24 g/mol.

3-Cyclopentyl-[1,2]oxazolo[5,4-b]pyridine-5-carboxylic acid (C12H12N2O3) 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 FormulaC12H12N2O3
Molecular Weight232.24 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1991
Nitrogen Atoms2

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