Description

4-Isocyanato-3,5-Dimethyl-1-Phenyl-1H-Pyrazole is a specialized heterocyclic isocyanate building block of significant interest in advanced organic synthesis. This compound is valued for its role as a key precursor in the development of novel polymers, pharmaceuticals, and agrochemicals, where its reactive isocyanate group enables precise molecular construction. It is primarily sought by research institutions and industrial R&D departments focused on creating high-performance materials, active pharmaceutical ingredients (APIs), and crop protection agents.

Application

• Pharmaceutical Intermediate: Serves as a critical building block in the synthesis of novel drug candidates, particularly in creating urea or carbamate linkages for targeted therapies.
• Agrochemical Synthesis: Used in the research and production of advanced pesticides and herbicides, where the pyrazole core contributes to biological activity.
• Polymer & Material Science: Acts as a monomer or cross-linking agent in the development of specialty polyurethanes, coatings, and adhesives with enhanced properties.
• Chemical Research: Employed in academic and industrial laboratories for method development and the creation of complex molecular architectures.
• Dye & Pigment Manufacturing: Utilized as an intermediate in the synthesis of high-performance colorants and functional dyes.

Basic Information

Product Name	4-Isocyanato-3,5-Dimethyl-1-Phenyl-1H-Pyrazole
CAS No.	637335-93-4
Molecular Formula	C12H11N3O
Molecular Weight	213.24 g/mol
Synonyms	1-Phenyl-3,5-dimethyl-4-isocyanato-1H-pyrazole; 1-Phenyl-3,5-dimethyl-4-pyrazolyl isocyanate; 4-Isocyanato-1-phenyl-3,5-dimethylpyrazole; 3,5-Dimethyl-1-phenyl-1H-pyrazole-4-isocyanate; 1H-Pyrazole-4-isocyanate, 3,5-dimethyl-1-phenyl-
EINECS	Contact for details

Quality Control

Every batch of 4-Isocyanato-3,5-Dimethyl-1-Phenyl-1H-Pyrazole is manufactured and tested under strict quality management protocols to ensure consistency and reliability for your critical applications. Our products undergo rigorous quality testing to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and impurity profiles are available upon request.

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). 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 (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Melting Point	Contact for details
Water Content (KF)	≤ 0.5%

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