Ethyl 2-amino-4,5-dihydronaphtho[2,1-b]thiophene-1-carboxylate CAS 1036583-69-3

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 2-amino-4,5-dihydronaphtho[2,1-b]thiophene-1-carboxylate.

Ethyl 2-amino-4,5-dihydronaphtho[2,1-b]thiophene-1-carboxylate (CAS 1036583-69-3), molecular formula C15H15NO2S and molecular weight 273.35 g/mol, is a CATO reference standard with documented purity and traceability.

Ethyl 2-amino-4,5-dihydronaphtho[2,1-b]thiophene-1-carboxylate (C15H15NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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

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