3-(((4-(Tert-butyl)phenyl)thio)methyl)-5-(3,4-dichlorophenyl)isoxazole CAS 478067-77-5

Description

Compared with other compounds in its class, the molecular weight of 392.34 g/mol gives 3-(((4-(Tert-butyl)phenyl)thio)methyl)-5-(3,4-dichlorophenyl)isoxazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

3-(((4-(Tert-butyl)phenyl)thio)methyl)-5-(3,4-dichlorophenyl)isoxazole (CAS 478067-77-5), molecular formula C20H19Cl2NOS and molecular weight 392.34 g/mol, is a CATO reference standard with documented purity and traceability.

Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, 3-(((4-(Tert-butyl)phenyl)thio)methyl)-5-(3,4-dichlorophenyl)isoxazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 392.34 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.

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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