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• Solvents and Organic Chemicals Organic Compounds Organohalogen compounds Aryl halides Aryl chlorides

Comprehensive Overview of 5-Chloro-1,4-dimethyl-1H-pyrazole (CAS No. 127842-11-9): Properties, Applications, and Industry Insights

5-Chloro-1,4-dimethyl-1H-pyrazole (CAS No. 127842-11-9) is a specialized heterocyclic compound that has garnered significant attention in pharmaceutical and agrochemical research. This chlorinated pyrazole derivative is characterized by its unique molecular structure, combining a pyrazole ring with chloro and methyl substituents at strategic positions. The compound's chemical stability and bioactive potential make it a valuable intermediate in synthetic chemistry, particularly in the development of novel crop protection agents and pharmaceutical precursors.

Recent advancements in green chemistry have highlighted the role of 5-chloro-1,4-dimethyl-1H-pyrazole as a building block for sustainable synthesis. Researchers are increasingly focusing on its utility in catalyzed cross-coupling reactions, where its electron-withdrawing chloro group enhances reactivity. The compound's low environmental persistence aligns with modern regulatory trends, addressing growing concerns about chemical footprint reduction in industrial applications. These properties position it as a preferred choice over traditional halogenated compounds in eco-friendly formulations.

From a materials science perspective, CAS 127842-11-9 demonstrates intriguing ligand properties in coordination chemistry. Its ability to form stable complexes with transition metals has opened new avenues in catalyst design and functional material development. The methyl groups at positions 1 and 4 contribute to steric effects that influence molecular packing in crystalline states, making it relevant for supramolecular engineering studies. These characteristics have led to patented applications in advanced material synthesis, particularly for electronic and optical devices.

The pharmacological potential of 5-chloro-1,4-dimethyl-1H-pyrazole derivatives continues to be explored in drug discovery pipelines. Structural modifications of this core scaffold have yielded compounds with notable enzyme inhibition activities, particularly against targets involved in metabolic disorders. Its bioisosteric properties relative to other nitrogen-containing heterocycles make it a versatile template for medicinal chemistry optimization. Current research focuses on its incorporation into selective kinase inhibitors, with several derivatives progressing through preclinical evaluations.

Analytical characterization of 127842-11-9 reveals distinct spectroscopic signatures that facilitate quality control in manufacturing. The compound exhibits characteristic NMR chemical shifts (1H: δ 2.25 for C4-methyl, 3.85 for N1-methyl) and mass spectral fragmentation patterns (m/z 145 [M+H]?). These analytical markers are crucial for ensuring batch-to-batch consistency in industrial production. Advanced techniques like HPLC-MS and X-ray crystallography have further elucidated its molecular conformation and solid-state properties.

Industrial scale-up of 5-chloro-1,4-dimethyl-1H-pyrazole synthesis has benefited from continuous process improvements. Modern flow chemistry approaches have enhanced yield and purity while reducing organic solvent consumption. The compound's thermodynamic stability allows for efficient purification via crystallization techniques, with typical industrial batches achieving >98% purity. These manufacturing advances support its growing adoption in fine chemical production across global markets.

Emerging applications in electronic materials have expanded the commercial relevance of CAS 127842-11-9. Its incorporation into organic semiconductors and charge transport materials demonstrates promising performance in optoelectronic devices. The compound's electron-deficient character and planar geometry contribute to enhanced charge mobility in thin-film architectures. This has stimulated patent activity around its use in OLED formulations and photovoltaic components.

Regulatory compliance remains a critical consideration for users of 5-chloro-1,4-dimethyl-1H-pyrazole. The substance is properly classified under REACH regulations with comprehensive SDS documentation available. Its toxicological profile has been extensively studied, showing favorable results in standard ecotoxicity assays. These safety evaluations support its responsible use in research and industrial applications while meeting global chemical management standards.

The global market for pyrazole derivatives including 127842-11-9 is projected to grow at 6.2% CAGR through 2030, driven by demand from life sciences and advanced materials sectors. Strategic partnerships between custom synthesis providers and end-users are accelerating innovation around this chemistry. With its balanced combination of reactivity, stability, and structural versatility, 5-chloro-1,4-dimethyl-1H-pyrazole continues to enable breakthroughs across multiple technology domains.

• 228862-16-6(1H-Pyrazole, 3-chloro-1,4-dimethyl-)
• 117007-77-9(5-Chloro-1-methyl-1H-pyrazole-4-carbaldehyde)
• 111493-52-8(5-Chloro-1-methyl-1H-pyrazole-4-carbonitrile)
• 1378491-01-0((5-chloro-1-methyl-1H-pyrazol-4-yl)methanol)
• 1195585-81-9(5-Chloro-1,3,4-trimethyl-1H-pyrazole)
• 406728-99-2(1H-Pyrazole, 3,5-dichloro-1-ethyl-4-methyl-)
• 42110-76-9(5-chloro-1-methyl-pyrazole)
• 127842-10-8(1H-Pyrazole,3,5-dichloro-1,4-dimethyl-)
• 406728-98-1(1H-PYRAZOLE, 5-CHLORO-1-ETHYL-4-METHYL-)
• 797798-26-6(3-chloro-1-methyl-1H-pyrazole-4-carbaldehyde)