Description

4-Chloro-5(3)-Methyl-3(5)-(Perfluoropentyl)Pyrazole is a specialized fluorinated pyrazole derivative, a high-value building block for advanced material synthesis. Its core value lies in the unique combination of a heterocyclic pyrazole core with a perfluorinated alkyl chain, imparting exceptional chemical stability, hydrophobicity, and specific electronic properties. This compound is critically needed by R&D chemists and process engineers in the agrochemical and pharmaceutical industries for developing novel active ingredients, and by material scientists for creating specialty polymers and surface modifiers.

Application

• Agrochemical Intermediate: A key synthon for the development of novel herbicides, fungicides, and insecticides, leveraging the pyrazole moiety's bioactivity and the fluorinated chain's metabolic stability and lipophilicity.
• Pharmaceutical Building Block: Used in medicinal chemistry research for the synthesis of potential drug candidates, where the fluorine atoms can enhance membrane permeability and binding affinity.
• Specialty Polymer Monomer: Serves as a functional monomer for synthesizing fluorinated polymers with enhanced chemical resistance, low surface energy, and improved thermal stability for coatings and high-performance materials.
• Surface Modification Agent: The perfluoropentyl group makes it suitable for creating hydrophobic and oleophobic surfaces on textiles, electronics, and optical devices.
• Liquid Crystal & Electronic Material Precursor: Used in the research and development of fluorinated liquid crystals and organic electronic materials due to its specific molecular geometry and electronic characteristics.
• Catalyst Ligand Synthesis: The pyrazole nitrogen atoms can act as coordination sites for metal ions, making it a precursor for novel ligands in catalytic systems.

Basic Information

Item	Details
Product Name	4-Chloro-5(3)-Methyl-3(5)-(Perfluoropentyl)Pyrazole
CAS No.	247220-87-7
Molecular Formula	C9H4ClF11N2
Molecular Weight	384.58 g/mol
Synonyms	4-Chloro-5-methyl-3-(perfluoropentyl)pyrazole; 4-Chloro-3-methyl-5-(perfluoropentyl)pyrazole; 3-(Perfluoropentyl)-4-chloro-5-methylpyrazole; 5-(Perfluoropentyl)-4-chloro-3-methylpyrazole; 1H-Pyrazole, 4-chloro-5-methyl-3-(perfluoropentyl)-; 1H-Pyrazole, 4-chloro-3-methyl-5-(perfluoropentyl)-; 4-Chloro-5-methyl-3-(1H,1H,2H,2H-perfluoropentyl)pyrazole (tautomer); 4-Chloro-3(5)-methyl-5(3)-(perfluoropentyl)pyrazole
EINECS	Contact for details

Quality Control

Our production of 4-Chloro-5(3)-Methyl-3(5)-(Perfluoropentyl)Pyrazole adheres to a stringent quality management system. Every batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via NMR and MS, to ensure high consistency and reliability for your critical R&D and scale-up processes. Certificates of Analysis (COA) with detailed specifications are provided for each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (HPLC)	Retention time corresponds to reference standard
Identification (NMR)	Spectrum consistent with reference structure
Purity (HPLC)	≥ 97.0% (Area %)
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.