Description

4,5-Dihydro-1-(4-Nitrophenyl)-5-Oxo-1H-Pyrazole-3-Carboxylic Acid CAS NO 62084-02-0 is a high-purity, functionalized pyrazole derivative serving as a critical pharmaceutical intermediate and organic synthesis building block. Its unique molecular structure, featuring both a carboxylic acid and a nitrophenyl group, makes it a versatile precursor for constructing more complex heterocyclic compounds and active pharmaceutical ingredients (APIs). This compound is essential for research institutions and manufacturers in the pharmaceutical, agrochemical, and specialty chemical sectors seeking reliable, high-quality intermediates for advanced synthesis.

Application

• Pharmaceutical Intermediate: Key building block in the synthesis of novel drug candidates, particularly those targeting anti-inflammatory, analgesic, or other therapeutic areas.
• Agrochemical Synthesis: Used as a precursor in the development of advanced pesticides and herbicides, leveraging its heterocyclic core.
• Organic Synthesis Reagent: Serves as a versatile starting material or intermediate for constructing complex molecules in academic and industrial R&D laboratories.
• Dye & Pigment Intermediate: Utilized in the synthesis of specialized dyes and pigments due to the presence of the nitrophenyl chromophore.
• Coordination Chemistry: Acts as a potential ligand for metal complexes, given its carboxylic acid and heterocyclic nitrogen donor sites.
• Material Science Research: Investigated for use in the development of advanced organic materials and polymers.

Basic Information

Product Name	4,5-Dihydro-1-(4-Nitrophenyl)-5-Oxo-1H-Pyrazole-3-Carboxylic Acid
CAS No.	62084-02-0
Molecular Formula	C11H9N3O5
Molecular Weight	263.21 g/mol
Synonyms	1-(4-Nitrophenyl)-1H-pyrazole-3,5-dicarboxylic acid, 5-oxo-4,5-dihydro derivative; 1-(p-Nitrophenyl)-5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylic acid; 5-Oxo-1-(4-nitrophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid; 4,5-Dihydro-5-oxo-1-(4-nitrophenyl)-1H-pyrazole-3-carboxylic acid; 3-Carboxy-1-(4-nitrophenyl)-5-pyrazolone; 1-(4-Nitrophenyl)-3-carboxy-5-pyrazolone; 62084-02-0; 4,5-Dihydro-1-(4-nitrophenyl)-5-oxo-1H-pyrazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our production of 4,5-Dihydro-1-(4-Nitrophenyl)-5-Oxo-1H-Pyrazole-3-Carboxylic Acid adheres to stringent quality management systems. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR, to ensure it meets precise customer specifications. Certificates of Analysis (COA) documenting all critical parameters are provided and available upon request 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 room temperature (typically 15-25°C). This compound may be light-sensitive and should be handled accordingly to maintain stability.

Specification

Item	Specification
Appearance	Yellow to light brown crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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