Description

Ethyl 1-(4-Methoxyphenyl)-5-Methyl-1H-Pyrazole-4-Carboxylate is a high-purity, synthetically valuable pyrazole derivative. This compound serves as a critical pharmaceutical intermediate and a versatile building block in advanced organic synthesis. It is primarily required by R&D chemists and process development teams in the pharmaceutical, agrochemical, and fine chemical industries for the development of novel active ingredients.

Application

• Pharmaceutical Intermediate: Key precursor in the synthesis of novel drug candidates, particularly those targeting inflammation, pain, and central nervous system disorders.
• Agrochemical Research: Used as a core scaffold for developing new herbicides, fungicides, and insecticides with enhanced efficacy.
• Fine Chemical Synthesis: A versatile building block for constructing complex heterocyclic compounds in research and custom synthesis projects.
• Material Science: Potential monomer or additive in the research of specialty polymers and advanced functional materials.
• Academic & Institutional R&D: Serves as a standard or starting material in university and government laboratory research programs.

Basic Information

Product Name	Ethyl 1-(4-Methoxyphenyl)-5-Methyl-1H-Pyrazole-4-Carboxylate
CAS No.	187998-66-9
Molecular Formula	C14H16N2O3
Molecular Weight	260.29 g/mol
Synonyms	Ethyl 5-Methyl-1-(4-methoxyphenyl)-1H-pyrazole-4-carboxylate; 1H-Pyrazole-4-carboxylic acid, 1-(4-methoxyphenyl)-5-methyl-, ethyl ester; 5-Methyl-1-(4-methoxyphenyl)-1H-pyrazole-4-carboxylic acid ethyl ester; 1-(4-Methoxyphenyl)-5-methyl-1H-pyrazole-4-carboxylic Acid Ethyl Ester; 4-Methoxy-α,5-dimethyl-1H-pyrazole-1-acetic acid ethyl ester (related); Pyrazole-4-carboxylate derivative; 187998-66-9
EINECS	Contact for details

Quality Control

Our Ethyl 1-(4-Methoxyphenyl)-5-Methyl-1H-Pyrazole-4-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. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are provided with every shipment to guarantee batch-to-batch consistency and traceability for your R&D and scale-up processes.

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). Keep away from heat, sparks, and open flame. For long-term storage, consider an inert atmosphere to maintain optimal stability.

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)	Total impurities ≤ 2.0%
Any single impurity	≤ 0.5%
Residual Solvents (GC)	Complies with ICH guidelines
Loss on Drying	≤ 0.5%

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