Description

Ethyl 5-Methyl-3-Oxo-2,3-Dihydro-1H-Pyrazole-4-Carboxylate is a high-purity pyrazole derivative ester, serving as a critical advanced pharmaceutical intermediate and versatile chemical building block. Its value lies in enabling the synthesis of complex heterocyclic compounds, offering researchers and manufacturers a reliable and consistent starting material for active ingredient development. This product is essential for R&D and production teams in the pharmaceutical, agrochemical, and specialty chemical industries seeking to develop new therapeutic agents and functional molecules.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those with pyrazole-based core structures for anti-inflammatory, analgesic, or antimicrobial activity.
• Agrochemical Synthesis: Used in the research and development of new generation pesticides, herbicides, and fungicides, leveraging its heterocyclic framework.
• Chemical Research & Development: Serves as a versatile building block for constructing complex heterocyclic libraries in medicinal and combinatorial chemistry.
• Fine Chemical Production: Employed in the manufacture of specialty dyes, pigments, and other performance chemicals where specific molecular architectures are required.
• Academic Research: Utilized in university and institutional labs for studying reaction mechanisms and developing new synthetic methodologies involving pyrazole chemistry.

Basic Information

Product Name	Ethyl 5-Methyl-3-Oxo-2,3-Dihydro-1H-Pyrazole-4-Carboxylate
CAS No.	125732-40-3
Molecular Formula	C7H10N2O3
Molecular Weight	170.17 g/mol
Synonyms	Ethyl 5-methyl-3-oxo-2,5-dihydro-1H-pyrazole-4-carboxylate; 4-Carbethoxy-5-methyl-2-pyrazolin-3-one; 5-Methyl-3-oxo-2,3-dihydro-1H-pyrazole-4-carboxylic acid ethyl ester; Ethyl 5-methyl-1H-pyrazole-4-carboxylate-3-one; 5-Methyl-1H-pyrazole-4-carboxylic acid, 3-oxo-, ethyl ester; Ethyl 5-methyl-3-oxo-1,2-dihydropyrazole-4-carboxylate; 4-Ethoxycarbonyl-5-methyl-2-pyrazolin-3-one
EINECS	Contact for details

Quality Control

Our Ethyl 5-Methyl-3-Oxo-2,3-Dihydro-1H-Pyrazole-4-Carboxylate is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing to ensure it meets high-purity standards suitable for pharmaceutical intermediate applications. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to guarantee traceability and compliance with your specifications.

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 such as strong oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	Contact for details
Loss on Drying	≤ 0.5%
Residue on Ignition	≤ 0.1%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%

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