1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 32932-16-4

Purity 97%+In StockPharmaceutical Standards
CAS No.32932-16-4
Molecular FormulaC14H15NO5
Molecular Weight277.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid CAS 32932-16-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 277.27 g/mol gives 1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (CAS 32932-16-4), molecular formula C14H15NO5 and molecular weight 277.27 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid (C14H15NO5) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

CATO manufactures 1-Ethyl-6,7-dimethoxy-4-oxo-1,4-dihydroquinoline-3-carboxylic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

Physical & Chemical Properties

Molecular FormulaC14H15NO5
Molecular Weight277.27 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, acetonitrile, DMSO, water (slightly soluble)
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.)1966
Nitrogen Atoms1

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