3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid CAS 1263210-41-8

Purity 97%+In StockPharmaceutical Standards
CAS No.1263210-41-8
Molecular FormulaC18H12N2O3S
Molecular Weight336.36 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid CAS 1263210-41-8 chemical structure

Description

3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1263210-41-8) is a high-purity analytical reference standard with the molecular formula C18H12N2O3S and a molecular weight of 336.36 g/mol.

Based on its molecular formula C18H12N2O3S, 3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 336.36 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

CATO manufactures 3-Benzyl-6-(thiophen-2-yl)isoxazolo[5,4-b]pyridine-4-carboxylic acid 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 FormulaC18H12N2O3S
Molecular Weight336.36 g/mol
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)14.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1990
Nitrogen Atoms2
Sulfur Atoms1

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