Description

5-(4-Nitrophenyl)Isoxazole-3-Carboxylic Acid is a high-purity, functionalized isoxazole derivative serving as a critical building block in advanced organic synthesis. Its molecular structure, featuring both a carboxylic acid and a nitrophenyl group, makes it a versatile intermediate for constructing complex heterocyclic systems. This compound is primarily sought after by research institutions and pharmaceutical R&D departments for the development of novel active pharmaceutical ingredients (APIs) and agrochemicals.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of potential drug candidates, particularly those targeting inflammation, cancer, and infectious diseases.
• Agrochemical Research: Used in the development of new herbicides, fungicides, and insecticides due to its bioactive heterocyclic core.
• Material Science: Serves as a monomer or functional additive in the research of specialty polymers and advanced organic materials.
• Chemical Synthesis: Employed as a versatile building block for creating complex libraries of isoxazole-based compounds for high-throughput screening.
• Academic & Industrial R&D: Essential for methodological studies in organic chemistry and for scaling up novel synthetic routes.

Basic Information

Product Name	5-(4-Nitrophenyl)Isoxazole-3-Carboxylic Acid
CAS No.	33282-25-6
Molecular Formula	C10H6N2O5
Molecular Weight	234.17 g/mol
Synonyms	5-(p-Nitrophenyl)isoxazole-3-carboxylic acid; 3-Isoxazolecarboxylic acid, 5-(4-nitrophenyl)-; 5-(4-Nitrophenyl)-1,2-oxazole-3-carboxylic acid; 5-(4-Nitrophenyl)isoxazole-3-carboxylic acid; 5-(4-Nitro-phenyl)-isoxazole-3-carboxylic acid; 5-(4-Nitrophenyl)-3-carboxyisoxazole
EINECS	Contact for details

Quality Control

Our production of 5-(4-Nitrophenyl)Isoxazole-3-Carboxylic Acid adheres to stringent in-process controls to ensure batch-to-batch consistency and high purity. Each lot is fully characterized and analyzed against established specifications. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 97.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Single Impurity (HPLC)	≤ 1.0%
Total Impurities (HPLC)	≤ 3.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.