Description

4-Isoxazolecarboxylicacid,3-Methyl-5-(p-Nitrophenyl)-,Ethylester(7Ci) CAS NO 91956-02-4 is a specialized heterocyclic organic compound featuring an isoxazole core substituted with a p-nitrophenyl group, serving as a high-value chemical intermediate and research building block. Its unique molecular architecture makes it a critical precursor for synthesizing advanced materials and biologically active molecules, where precise structural control is paramount. This compound is essential for R&D chemists and process developers in the pharmaceutical, agrochemical, and fine chemical sectors seeking to develop novel compounds with targeted properties.

Application

• Pharmaceutical Intermediate: A key synthon for the research and development of new drug candidates, particularly those targeting specific enzyme pathways.
• Agrochemical Research: Used in the synthesis of novel herbicides, fungicides, or insecticides, leveraging the bioactivity of the isoxazole and nitrophenyl motifs.
• Material Science Precursor: Serves as a building block for advanced organic materials, such as liquid crystals or polymers with specific electronic or optical properties.
• Chemical Biology Probe: Utilized in academic and industrial research to study biological processes and protein-ligand interactions.
• Fine Chemical Synthesis: Employed in multi-step synthetic routes to create complex, high-value specialty chemicals for various industrial applications.

Basic Information

Product Name	4-Isoxazolecarboxylicacid,3-Methyl-5-(p-Nitrophenyl)-,Ethylester(7Ci)
CAS No.	91956-02-4
Molecular Formula	C13H12N2O5
Molecular Weight	276.25 g/mol
Synonyms	Ethyl 3-Methyl-5-(4-nitrophenyl)isoxazole-4-carboxylate; 3-Methyl-5-(p-nitrophenyl)-4-isoxazolecarboxylic Acid Ethyl Ester; 4-Isoxazolecarboxylic acid, 3-methyl-5-(4-nitrophenyl)-, ethyl ester; Ethyl 3-methyl-5-(4-nitrophenyl)-1,2-oxazole-4-carboxylate; 91956-02-4; 3-Methyl-5-(4-nitrophenyl)isoxazole-4-carboxylic acid ethyl ester
EINECS	Contact for details

Quality Control

Our production of 4-Isoxazolecarboxylicacid,3-Methyl-5-(p-Nitrophenyl)-,Ethylester(7Ci) adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods (NMR, IR). A detailed Certificate of Analysis (COA) documenting all specifications is provided with every shipment to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, containers should be opaque or stored in dark conditions to maintain product integrity.

Specification

Item	Specification
Appearance	Off-white to pale yellow crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%

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