11-Oxo-11H-pyrido[2,1-b]quinazoline-6-carboxylic acid CAS 4393-98-0

Purity 97%+In StockPharmaceutical Standards
CAS No.4393-98-0
Molecular FormulaC13H8N2O3
Molecular Weight240.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

11-Oxo-11H-pyrido[2,1-b]quinazoline-6-carboxylic acid CAS 4393-98-0 chemical structure

Description

The occurrence of 11-Oxo-11H-pyrido[2,1-b]quinazoline-6-carboxylic acid is closely related to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

CATO supplies 11-Oxo-11H-pyrido[2,1-b]quinazoline-6-carboxylic acid (CAS 4393-98-0), a certified reference material (molecular formula C13H8N2O3, MW 240.21 g/mol) for analytical method development and quality control.

Based on its molecular formula C13H8N2O3, 11-Oxo-11H-pyrido[2,1-b]quinazoline-6-carboxylic acid contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 240.21 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 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 11-Oxo-11H-pyrido[2,1-b]quinazoline-6-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 FormulaC13H8N2O3
Molecular Weight240.21 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)11.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Nitrogen Atoms2

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