Description

Ethyl 3-Cyclopropyl-1-Methyl-1H-Pyrazole-5-Carboxylate is a high-purity, functionalized pyrazole derivative serving as a critical building block in advanced organic synthesis. This compound matters for its role as a versatile intermediate in the development of novel active pharmaceutical ingredients (APIs) and agrochemicals. It is primarily needed by R&D chemists and process development scientists in the pharmaceutical, agrochemical, and specialty chemical industries seeking to introduce the cyclopropyl and ester-functionalized pyrazole scaffold into new molecular entities.

Application

• Pharmaceutical Intermediate: Key synthon for the research and development of new drug candidates, particularly in areas targeting central nervous system (CNS) disorders and anti-infective agents.
• Agrochemical Synthesis: Serves as a precursor in the manufacture of modern pesticides and herbicides, leveraging the biological activity of the pyrazole core.
• Chemical Research & Development: A valuable scaffold for medicinal chemistry and material science research, enabling structure-activity relationship (SAR) studies.
• Ligand and Catalyst Preparation: Used in the synthesis of specialized ligands for metal-organic catalysis and coordination chemistry.
• Custom Synthesis and Contract Manufacturing: Supplied to CDMOs (Contract Development and Manufacturing Organizations) for scale-up and production under cGMP conditions.

Basic Information

Product Name	Ethyl 3-Cyclopropyl-1-Methyl-1H-Pyrazole-5-Carboxylate
CAS No.	133261-11-7
Molecular Formula	C10H14N2O2
Molecular Weight	194.23 g/mol
Synonyms	Ethyl 3-cyclopropyl-1-methyl-1H-pyrazole-5-carboxylate; 1-Methyl-3-cyclopropyl-1H-pyrazole-5-carboxylic acid ethyl ester; 5-Carbethoxy-3-cyclopropyl-1-methylpyrazole; 3-Cyclopropyl-1-methyl-1H-pyrazole-5-carboxylic Acid Ethyl Ester; Ethyl 1-methyl-3-cyclopropylpyrazole-5-carboxylate; Pyrazole-5-carboxylic acid, 3-cyclopropyl-1-methyl-, ethyl ester
EINECS	Contact for details

Quality Control

Our Ethyl 3-Cyclopropyl-1-Methyl-1H-Pyrazole-5-Carboxylate is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC, GC, and NMR, to ensure high chemical purity and identity confirmation. Certificates of Analysis (COA) detailing purity, impurities, and physical characteristics are provided with every shipment. We support development and commercial projects requiring compliance with ICH guidelines.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); keep the container tightly sealed in a dry environment to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Residue on Ignition	≤ 0.1%

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