Description

5-Ethyl-1-(4-Methylphenyl)-1H-Pyrazole-4-Carboxylic Acid is a high-purity pyrazole derivative, a critical building block in advanced organic synthesis. This compound matters for its role as a versatile intermediate in the development of active pharmaceutical ingredients (APIs) and agrochemicals, where precise molecular architecture is paramount. It is primarily needed by research and development chemists, process development scientists, and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of novel drug candidates, particularly those targeting central nervous system (CNS) disorders, inflammation, and metabolic diseases.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides, herbicides, and fungicides, leveraging the pyrazole core's bioactivity.
• Material Science Research: Serves as a monomer or functional additive in the development of specialty polymers and advanced organic materials.
• Chemical Research & Development: Employed as a standard or building block in method development, catalysis studies, and the exploration of new synthetic pathways.
• Ligand Synthesis: The carboxylic acid functionality makes it suitable for creating complex ligands used in coordination chemistry and catalysis.

Basic Information

Product Name	5-Ethyl-1-(4-Methylphenyl)-1H-Pyrazole-4-Carboxylic Acid
CAS No.	1002185-78-5
Molecular Formula	C13H14N2O2
Molecular Weight	230.26 g/mol
Synonyms	5-Ethyl-1-p-tolyl-1H-pyrazole-4-carboxylic acid; 1-(4-Methylphenyl)-5-ethyl-1H-pyrazole-4-carboxylic acid; 4-Pyrazolecarboxylic acid, 5-ethyl-1-(4-methylphenyl)-; 5-Ethyl-1-(4-methylphenyl)pyrazole-4-carboxylic acid; 5-Ethyl-1-(p-tolyl)-1H-pyrazole-4-carboxylic acid
EINECS	Contact for details

Quality Control

Our 5-Ethyl-1-(4-Methylphenyl)-1H-Pyrazole-4-Carboxylic Acid is manufactured under a strict quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation via FT-IR and NMR, to ensure it meets the high standards required for research and commercial synthesis. Certificates of Analysis (COA) with complete batch data are provided to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

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%
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

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