Ethyl 2-(2-((3-(diethylamino)propyl)amino)acetamido)-4,5-dimethylthiophene-3-carboxylate CAS 297761-67-2

Purity 97%+In StockPharmaceutical Standards
CAS No.297761-67-2
Molecular FormulaC18H31N3O3S
Molecular Weight369.52 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

Ethyl 2-(2-((3-(diethylamino)propyl)amino)acetamido)-4,5-dimethylthiophene-3-carboxylate CAS 297761-67-2 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 369.52 g/mol gives Ethyl 2-(2-((3-(diethylamino)propyl)amino)acetamido)-4,5-dimethylthiophene-3-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies Ethyl 2-(2-((3-(diethylamino)propyl)amino)acetamido)-4,5-dimethylthiophene-3-carboxylate (CAS 297761-67-2), a certified reference material (molecular formula C18H31N3O3S, MW 369.52 g/mol) for analytical method development and quality control.

Ethyl 2-(2-((3-(diethylamino)propyl)amino)acetamido)-4,5-dimethylthiophene-3-carboxylate (C18H31N3O3S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 FormulaC18H31N3O3S
Molecular Weight369.52 g/mol
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)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms3
Sulfur Atoms1

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