tert-Butyl 3-(5-(5-chloro-2-hydroxyphenyl)-1H-pyrazol-1-yl)azetidine-1-carboxylate CAS 1235407-19-8

Description

The occurrence of tert-Butyl 3-(5-(5-chloro-2-hydroxyphenyl)-1H-pyrazol-1-yl)azetidine-1-carboxylate is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

tert-Butyl 3-(5-(5-chloro-2-hydroxyphenyl)-1H-pyrazol-1-yl)azetidine-1-carboxylate (CAS 1235407-19-8) is a high-purity analytical reference standard with the molecular formula C17H20ClN3O3 and a molecular weight of 349.81 g/mol.

Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, tert-Butyl 3-(5-(5-chloro-2-hydroxyphenyl)-1H-pyrazol-1-yl)azetidine-1-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 349.81 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.

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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