Description

3-Ethyl 4,5-Dihydro-5-Oxo-1-(2-Sulphophenyl)-1H-Pyrazole-3-Carboxylate is a specialized pyrazole derivative, a key heterocyclic intermediate valued for its functional versatility in advanced synthesis. This compound matters for its role as a crucial building block in the development of high-performance dyes, pigments, and active pharmaceutical ingredients (APIs). Industrial buyers in the fine chemical, agrochemical, and pharmaceutical research sectors need this material for its precise reactivity and structural framework.

Application

• Dye & Pigment Intermediate: A critical precursor in the synthesis of high-value azo and heterocyclic dyes, contributing to color fastness and brilliance.
• Pharmaceutical Building Block: Used in the research and development of novel APIs, particularly those targeting anti-inflammatory and analgesic pathways.
• Agrochemical Synthesis: Serves as a key intermediate in creating advanced herbicides and plant growth regulators.
• Chemical Research & Development: Employed in academic and industrial labs for exploring new heterocyclic compounds and reaction methodologies.
• Functional Material Production: Utilized in the development of specialty chemicals for electronics and imaging technologies.

Basic Information

Product Name	3-Ethyl 4,5-Dihydro-5-Oxo-1-(2-Sulphophenyl)-1H-Pyrazole-3-Carboxylate
CAS No.	71401-58-6
Molecular Formula	C13H14N2O6S
Molecular Weight	326.32 g/mol
Synonyms	3-Ethyl 5-oxo-1-(2-sulfophenyl)-4,5-dihydro-1H-pyrazole-3-carboxylate; 1-(2-Sulfophenyl)-3-ethoxycarbonyl-5-pyrazolone; 3-Carbethoxy-1-(2-sulfophenyl)-5-pyrazolone; 3-Ethoxycarbonyl-1-(2-sulfophenyl)-5-pyrazolone; 1-(2-Sulfophenyl)-3-carbethoxy-5-pyrazolone; Pyrazolone derivative CAS 71401-58-6; 5-Pyrazolone-3-carboxylic acid, 1-(2-sulfophenyl)-, ethyl ester
EINECS	Contact for details

Quality Control

Our 3-Ethyl 4,5-Dihydro-5-Oxo-1-(2-Sulphophenyl)-1H-Pyrazole-3-Carboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise customer specifications and industry standards. A comprehensive Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and compliance.

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). Due to its hygroscopic nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance. Keep away from incompatible materials.

Specification

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

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