1076200-02-6 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid, 5,5-Dimethyl Ketal 4,5-Dihydro-5,5-dimethoxy-4-oxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid 2-Ethyl 7,9-Dimethyl Ester CAS 1076200-02-6

Purity 97%+In StockPharmaceutical Standards
CAS No.1076200-02-6
Molecular FormulaC20H20N2O9
Molecular Weight432.38 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1076200-02-6 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid, 5,5-Dimethyl Ketal 4,5-Dihydro-5,5-dimethoxy-4-oxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid 2-Ethyl 7,9-Dimethyl Ester CAS 1076200-02-6 chemical structure

Description

The occurrence of 1076200-02-6 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid, 5,5-Dimethyl Ketal 4,5-Dihydro-5,5-dimethoxy-4-oxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid 2-Ethyl 7,9-Dimethyl Ester is closely related to a flavonoid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1076200-02-6 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid, 5,5-Dimethyl Ketal 4,5-Dihydro-5,5-dimethoxy-4-oxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid 2-Ethyl 7,9-Dimethyl Ester (CAS 1076200-02-6) is a high-purity analytical reference standard with the molecular formula C20H20N2O9 and a molecular weight of 432.38 g/mol.

Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, 1076200-02-6 4,5-Dihydro-4,5-dioxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid, 5,5-Dimethyl Ketal 4,5-Dihydro-5,5-dimethoxy-4-oxo-1H-pyrrolo[2,3-f]quinoline-2,7,9-tricarboxylic Acid 2-Ethyl 7,9-Dimethyl Ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 432.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 FormulaC20H20N2O9
Molecular Weight432.38 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore in a cool place (≤25°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)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1988
Nitrogen Atoms2

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