4-(m-Tolyl)isoxazole CAS 129746-47-0

Purity 97%+In StockPharmaceutical Standards
CAS No.129746-47-0
Molecular FormulaC10H9NO
Molecular Weight159.18 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

4-(m-Tolyl)isoxazole CAS 129746-47-0 chemical structure

Description

CATO manufactures 4-(m-Tolyl)isoxazole under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

4-(m-Tolyl)isoxazole (CAS 129746-47-0) is a high-purity analytical reference standard with the molecular formula C10H9NO and a molecular weight of 159.18 g/mol.

The molecular framework of 4-(m-Tolyl)isoxazole (C10H9NO) is characterized by a nitrogen-containing heterocyclic scaffold, 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.

Physical & Chemical Properties

Molecular FormulaC10H9NO
Molecular Weight159.18 g/mol
AppearanceOff-white to pale yellow crystalline powder. (faint amine-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)7.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1994
Nitrogen Atoms1

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