Description

5-Oxo-1-(2-Sulfophenyl)-2,5-Dihydro-1H-Pyrazole-3-Carboxylic Acid is a high-purity, functionalized pyrazole derivative with a sulfonic acid group, making it a versatile intermediate for advanced synthesis. Its value lies in its ability to impart water solubility and introduce specific heterocyclic functionality into target molecules, enabling the development of specialized compounds. This product is essential for research and development chemists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to create novel active ingredients or functional materials.

Application

• Pharmaceutical Intermediate: Key building block for the synthesis of novel drug candidates, particularly those requiring enhanced solubility or specific metal-chelating properties.
• Agrochemical Synthesis: Used in the research and development of new herbicides, fungicides, and plant growth regulators that benefit from its heterocyclic core.
• Dye & Pigment Manufacturing: Serves as a precursor for creating water-soluble azo dyes and complex colorants due to its sulfonic acid functionality.
• Coordination Chemistry & Ligand Synthesis: Acts as a chelating agent or ligand precursor for metal complexes used in catalysis or material science.
• Specialty Polymer Additive: Incorporated into polymers to modify properties such as hydrophilicity, adhesion, or UV stability.
• Analytical Reagent: Utilized in research as a standard or reagent for method development in chromatographic analysis.

Basic Information

Item	Details
Product Name	5-Oxo-1-(2-Sulfophenyl)-2,5-Dihydro-1H-Pyrazole-3-Carboxylic Acid
CAS No.	6402-05-7
Molecular Formula	C10H8N2O6S
Molecular Weight	284.25 g/mol
Synonyms	1-(2-Sulfophenyl)-5-oxo-2,5-dihydro-1H-pyrazole-3-carboxylic acid; 3-Pyrazolecarboxylic acid, 2,5-dihydro-5-oxo-1-(2-sulfophenyl)-; 1-(2-Sulfophenyl)-1H-pyrazol-5-ol-3-carboxylic acid; 5-Oxo-1-(2-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylic acid; 1-(o-Sulfophenyl)-5-oxo-2-pyrazoline-3-carboxylic acid; 2,5-Dihydro-5-oxo-1-(2-sulfophenyl)-1H-pyrazole-3-carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-Oxo-1-(2-Sulfophenyl)-2,5-Dihydro-1H-Pyrazole-3-Carboxylic Acid is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure high purity and consistent performance. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and physical characteristics to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); therefore, the container must be kept tightly sealed after opening to prevent degradation due to moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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