2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2,3-dimethylquinoxaline-6-carboxylate CAS 871806-28-9

Purity 97%+In StockPharmaceutical Standards
CAS No.871806-28-9
Molecular FormulaC19H22N4O3
Molecular Weight354.40 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2,3-dimethylquinoxaline-6-carboxylate CAS 871806-28-9 chemical structure

Description

The occurrence of 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2,3-dimethylquinoxaline-6-carboxylate is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2,3-dimethylquinoxaline-6-carboxylate (CAS 871806-28-9), molecular formula C19H22N4O3 and molecular weight 354.40 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C19H22N4O3, 2-((2-Cyano-3-methylbutan-2-yl)amino)-2-oxoethyl 2,3-dimethylquinoxaline-6-carboxylate contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 354.40 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.

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 FormulaC19H22N4O3
Molecular Weight354.40 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.)1987
Nitrogen Atoms4

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