8-Ethyl-2-methyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid CAS 17076-93-6

Purity 97%+In StockPharmaceutical Standards
CAS No.17076-93-6
Molecular FormulaC11H11N3O3
Molecular Weight233.22 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

8-Ethyl-2-methyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid CAS 17076-93-6 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 233.22 g/mol gives 8-Ethyl-2-methyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 8-Ethyl-2-methyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid (CAS 17076-93-6), a certified reference material (molecular formula C11H11N3O3, MW 233.22 g/mol) for analytical method development and quality control.

Based on its molecular formula C11H11N3O3, 8-Ethyl-2-methyl-5-oxo-5,8-dihydropyrido[2,3-d]pyrimidine-6-carboxylic acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 233.22 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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 FormulaC11H11N3O3
Molecular Weight233.22 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 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1961
Nitrogen Atoms3

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