5-{3-[(3-fluorophenyl)methyl]-1,2,4-oxadiazol-5-yl}-3-(4-methoxyphenyl)-1,2,4-oxadiazole CAS 1775330-71-6

Description

Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 5-{3-[(3-fluorophenyl)methyl]-1,2,4-oxadiazol-5-yl}-3-(4-methoxyphenyl)-1,2,4-oxadiazole.

5-{3-[(3-fluorophenyl)methyl]-1,2,4-oxadiazol-5-yl}-3-(4-methoxyphenyl)-1,2,4-oxadiazole (CAS 1775330-71-6), molecular formula C18H13FN4O3 and molecular weight 352.32 g/mol, is a CATO reference standard with documented purity and traceability.

5-{3-[(3-fluorophenyl)methyl]-1,2,4-oxadiazol-5-yl}-3-(4-methoxyphenyl)-1,2,4-oxadiazole (C18H13FN4O3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, fluorine substitution. It is notably hygroscopic, 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.

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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