1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxylic acid CAS 88371-25-9

Purity 97%+In StockPharmaceutical Standards
CAS No.88371-25-9
Molecular FormulaC11H11NO3
Molecular Weight205.21 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxylic acid CAS 88371-25-9 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 205.21 g/mol gives 1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-6-carboxylic acid (CAS 88371-25-9), molecular formula C11H11NO3 and molecular weight 205.21 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H11NO3, 1-Methyl-2-oxo-1,2,3,4-tetrahydroquinoline-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 205.21 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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 FormulaC11H11NO3
Molecular Weight205.21 g/mol
AppearanceOff-white to pale 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)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1982
Nitrogen Atoms1

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