Description

5-Isocyanato-1,3-Dimethyl-1H-Pyrazole is a specialized heterocyclic isocyanate monomer, a key building block for introducing the pyrazole moiety into advanced polymer systems. Its primary value lies in enabling the synthesis of high-performance polyurethanes, polyureas, and other polymers with enhanced thermal stability, chemical resistance, and tailored mechanical properties. This compound is essential for R&D and production in sectors requiring custom-engineered materials, such as advanced coatings, adhesives, and specialty elastomers.

Application

• High-Performance Polyurethane Synthesis: Serves as a critical monomer for creating polyurethane dispersions (PUDs), coatings, and elastomers with improved hydrolytic and thermal stability.
• Specialty Adhesives & Sealants: Used to formulate adhesives with enhanced bonding strength, flexibility, and resistance to chemicals and environmental factors.
• Advanced Polymer Modification: Acts as a reactive intermediate for grafting pyrazole functional groups onto polymer backbones, modifying properties like UV resistance and glass transition temperature.
• Pharmaceutical & Agrochemical Intermediates: Employed in the research and synthesis of active pharmaceutical ingredients (APIs) and agrochemicals where the pyrazole scaffold is pharmacologically relevant.
• Cross-linking Agent for Resins: Functions as an efficient cross-linker for hydroxyl-functional resins, producing networks with high cross-link density and durability.
• Material Science R&D: A valuable tool in academic and industrial research for developing novel functional materials, including dendrimers and smart polymers.

Basic Information

Product Name	5-Isocyanato-1,3-Dimethyl-1H-Pyrazole
CAS No.	785781-34-2
Molecular Formula	C6H7N3O
Molecular Weight	137.14 g/mol
Synonyms	1,3-Dimethyl-5-isocyanato-1H-pyrazole; 1H-Pyrazole, 5-isocyanato-1,3-dimethyl-; 5-Isocyanato-1,3-dimethylpyrazole; 1,3-Dimethylpyrazole-5-isocyanate; 5-Isocyanato-1,3-dimethyl-1H-pyrazole; Dimethylpyrazole isocyanate
EINECS	Contact for details

Quality Control

Our 5-Isocyanato-1,3-Dimethyl-1H-Pyrazole is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and isocyanate content assay, GC for residual solvents, and IR/NMR for structural confirmation. We provide Certificates of Analysis (COA) with each shipment, detailing all relevant specifications to ensure traceability and compliance with your research or production requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at temperatures between 2°C and 8°C (refrigerated) or as specified on the label. Due to its moisture-sensitive (hygroscopic) nature, containers must be kept sealed under a dry inert atmosphere (e.g., nitrogen or argon) to prevent degradation from atmospheric moisture. Keep away from heat, open flames, and incompatible materials such as alcohols, amines, and strong bases.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 97.0%
Isocyanate Content (Titration)	≥ 30.5%
Water Content (KF)	≤ 0.1%

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