4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid CAS 780779-13-7

Purity 97%+In StockPharmaceutical Standards
CAS No.780779-13-7
Molecular FormulaC20H19NO4
Molecular Weight337.37 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid CAS 780779-13-7 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 337.37 g/mol gives 4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid (CAS 780779-13-7), molecular formula C20H19NO4 and molecular weight 337.37 g/mol, is a CATO reference standard with documented purity and traceability.

4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid (C20H19NO4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).

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

As a certified reference material (CRM), 4-(8-Ethoxy-1,3-dimethyl-4-oxocyclohepta[c]pyrrol-2(4H)-yl)benzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.

Physical & Chemical Properties

Molecular FormulaC20H19NO4
Molecular Weight337.37 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
Degree of Unsaturation (DBE)12.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1986
Nitrogen Atoms1

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