Description

1-(2-Chlorophenyl)-5-Methoxy-1H-Pyrazole-3-Carboxylic Acid CAS NO 55983-86-3 is a high-purity pyrazole carboxylic acid derivative, a crucial advanced pharmaceutical intermediate. Its value lies in its role as a versatile building block for synthesizing complex active pharmaceutical ingredients (APIs) and other fine chemicals. This compound is essential for research and development laboratories, pharmaceutical manufacturers, and agrochemical producers seeking to develop new therapeutic agents and specialty chemicals.

Application

• Pharmaceutical Intermediate: A key building block in the synthesis of novel drug candidates, particularly in central nervous system (CNS) and anti-inflammatory therapeutic areas.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, leveraging its pyrazole core structure.
• Chemical Research & Development: Serves as a versatile scaffold for medicinal chemistry and organic synthesis projects in academic and industrial R&D settings.
• Fine Chemical Production: Employed in the manufacture of complex, high-value specialty chemicals and other functional intermediates.
• Reference Standard: Utilized as an analytical standard in quality control laboratories for method development and impurity profiling.

Basic Information

Product Name	1-(2-Chlorophenyl)-5-Methoxy-1H-Pyrazole-3-Carboxylic Acid
CAS No.	55983-86-3
Molecular Formula	C11H9ClN2O3
Molecular Weight	252.65 g/mol
Synonyms	1-(2-Chlorophenyl)-5-methoxy-1H-pyrazole-3-carboxylic acid; 5-Methoxy-1-(2-chlorophenyl)-1H-pyrazole-3-carboxylic acid; 1H-Pyrazole-3-carboxylic acid, 1-(2-chlorophenyl)-5-methoxy-; 1-(o-Chlorophenyl)-5-methoxypyrazole-3-carboxylic Acid; 2-Chloro-5-methoxypyrazole-3-carboxylic acid phenyl derivative; Pyrazole carboxylic acid derivative 55983-86-3; CAS 55983-86-3
EINECS	Contact for details

Quality Control

Our 1-(2-Chlorophenyl)-5-Methoxy-1H-Pyrazole-3-Carboxylic Acid is manufactured under strict quality management systems. Every batch undergoes rigorous analytical testing, including HPLC, NMR, and IR spectroscopy, to ensure identity, purity, and consistency. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing all specification results. Our quality commitment ensures the material meets the high standards required for pharmaceutical and advanced chemical synthesis.

Storage

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

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Identification (HPLC)	Conforms to reference
Assay (HPLC)	≥98.0%
Loss on Drying	≤1.0%
Residue on Ignition	≤0.1%
Heavy Metals	≤20 ppm
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.