3,4-Dihydro-4-oxo-pyrido[3,4-d]pyrimidine-2-carboxylic Acid CAS 1029420-94-7

Purity 97%+In StockPharmaceutical Standards
CAS No.1029420-94-7
Molecular FormulaC8H5N3O3
Molecular Weight191.14 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

3,4-Dihydro-4-oxo-pyrido[3,4-d]pyrimidine-2-carboxylic Acid CAS 1029420-94-7 chemical structure

Description

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.

3,4-Dihydro-4-oxo-pyrido[3,4-d]pyrimidine-2-carboxylic Acid (CAS 1029420-94-7) is a high-purity analytical reference standard with the molecular formula C8H5N3O3 and a molecular weight of 191.14 g/mol.

Based on its molecular formula C8H5N3O3, 3,4-Dihydro-4-oxo-pyrido[3,4-d]pyrimidine-2-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 191.14 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.

Physical & Chemical Properties

Molecular FormulaC8H5N3O3
Molecular Weight191.14 g/mol
AppearancePale yellow to 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)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms3

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