1-(5-(4-Isopropylphenyl)isoxazol-3-yl)cyclopentanecarboxylic acid CAS 1352505-27-1

Description

Compared with other compounds in its class, the molecular weight of 299.36 g/mol gives 1-(5-(4-Isopropylphenyl)isoxazol-3-yl)cyclopentanecarboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

1-(5-(4-Isopropylphenyl)isoxazol-3-yl)cyclopentanecarboxylic acid (CAS 1352505-27-1), molecular formula C18H21NO3 and molecular weight 299.36 g/mol, is a CATO reference standard with documented purity and traceability.

The molecular framework of 1-(5-(4-Isopropylphenyl)isoxazol-3-yl)cyclopentanecarboxylic acid (C18H21NO3) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).

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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