2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate CAS 331462-33-0

Purity 97%+In StockPharmaceutical Standards
CAS No.331462-33-0
Molecular FormulaC21H17Cl2NO5
Molecular Weight434.27 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate CAS 331462-33-0 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 434.27 g/mol gives 2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate (CAS 331462-33-0) is a high-purity analytical reference standard with the molecular formula C21H17Cl2NO5 and a molecular weight of 434.27 g/mol.

2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate (C21H17Cl2NO5) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

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.

As a certified reference material (CRM), 2-(2-((3-Chloro-1,4-dioxo-1,4-dihydronaphthalen-2-yl)amino)ethoxy)ethyl 4-chlorobenzoate 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 FormulaC21H17Cl2NO5
Molecular Weight434.27 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor, low volatility)
Purity97%+
StorageStore at room temperature, 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; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)13.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Halogen ContentCl-containing
Nitrogen Atoms1

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