Description

Ethyl 1-Methyl-3-Ethyl-4-Chloro-5-Pyrazolecarboxylate is a high-value pyrazole derivative, a crucial advanced intermediate in modern synthetic chemistry. Its precise molecular architecture makes it an essential building block for the development of complex, high-performance active ingredients. This compound is primarily sought by research and development teams and production chemists in the pharmaceutical and agrochemical industries for creating novel compounds with targeted biological activity.

Application

• Pharmaceutical Intermediate: A key synthon for the synthesis of novel drug candidates, particularly in the development of anti-inflammatory, analgesic, and central nervous system (CNS) active pharmaceutical ingredients (APIs).
• Agrochemical Synthesis: Serves as a critical precursor in the manufacture of modern pesticides, herbicides, and fungicides, contributing to the creation of compounds with enhanced efficacy and selectivity.
• Chemical Research & Development: Used extensively in academic and industrial R&D laboratories for exploring new heterocyclic chemistry, reaction pathways, and structure-activity relationships (SAR).
• Fine Chemical Production: Employed in the multi-step synthesis of complex fine chemicals and specialty materials requiring a functionalized pyrazole core.
• Ligand and Catalyst Development: Its structure can be utilized to develop novel ligands for metal catalysis or as a scaffold for organocatalysts in asymmetric synthesis.

Basic Information

Product Name	Ethyl 1-Methyl-3-Ethyl-4-Chloro-5-Pyrazolecarboxylate
CAS No.	124800-34-6
Molecular Formula	C9H13ClN2O2
Molecular Weight	216.66 g/mol
Synonyms	4-Chloro-1-methyl-3-ethyl-1H-pyrazole-5-carboxylic acid ethyl ester; Ethyl 4-chloro-1-methyl-3-ethylpyrazole-5-carboxylate; 1-Methyl-3-ethyl-4-chloro-5-pyrazolecarboxylic acid ethyl ester; 5-Carbethoxy-1-methyl-3-ethyl-4-chloropyrazole; 1H-Pyrazole-5-carboxylic acid, 4-chloro-1-methyl-3-ethyl-, ethyl ester; EMECP; 4-Chloro-EMPC
EINECS	Contact for details

Quality Control

Our production of Ethyl 1-Methyl-3-Ethyl-4-Chloro-5-Pyrazolecarboxylate adheres to stringent in-process controls and final release testing to ensure batch-to-batch consistency and high purity. We employ advanced analytical techniques including HPLC, GC, and NMR for comprehensive characterization. A Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place away from incompatible materials such as strong bases. Recommended storage temperature is 2-8°C for long-term stability, although the product is stable at controlled room temperature for shorter periods. Keep container tightly sealed when not in use to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Retention time matches reference standard
Assay (HPLC)	≥ 98.0%
Related Substances (HPLC)	Any single impurity ≤ 0.5% Total impurities ≤ 1.5%
Residual Solvents (GC)	Meets ICH Q3C guidelines
Loss on Drying	≤ 0.5%

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