n-(4-Iodophenyl)-3-methylisoxazole-5-carboxamide CAS 903272-59-3

Purity 97%+In StockPharmaceutical Standards
CAS No.903272-59-3
Molecular FormulaC11H9IN2O2
Molecular Weight328.11 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

n-(4-Iodophenyl)-3-methylisoxazole-5-carboxamide CAS 903272-59-3 chemical structure

Description

CATO manufactures n-(4-Iodophenyl)-3-methylisoxazole-5-carboxamide 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.

n-(4-Iodophenyl)-3-methylisoxazole-5-carboxamide (CAS 903272-59-3), molecular formula C11H9IN2O2 and molecular weight 328.11 g/mol, is a CATO reference standard with documented purity and traceability.

Based on its molecular formula C11H9IN2O2, n-(4-Iodophenyl)-3-methylisoxazole-5-carboxamide contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, iodine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 328.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

Physical & Chemical Properties

Molecular FormulaC11H9IN2O2
Molecular Weight328.11 g/mol
AppearancePale yellow to yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in DMSO, DMF, methanol
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1987
Halogen ContentI-containing
Nitrogen Atoms2

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