2-Chloro-3-{[(2-methoxyphenyl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione CAS 866157-70-2

Description

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.

2-Chloro-3-{[(2-methoxyphenyl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione (CAS 866157-70-2), molecular formula C18H14ClNO3 and molecular weight 327.76 g/mol, is a CATO reference standard with documented purity and traceability.

2-Chloro-3-{[(2-methoxyphenyl)methyl]amino}-1,4-dihydronaphthalene-1,4-dione (C18H14ClNO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, 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 aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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