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Comprehensive Overview of 4-Chloro-6-methyl-1,3-benzothiazol-2-amine (CAS No. 383131-41-7): Properties, Applications, and Industry Trends

4-Chloro-6-methyl-1,3-benzothiazol-2-amine (CAS No. 383131-41-7) is a specialized heterocyclic compound gaining attention in pharmaceutical and agrochemical research due to its unique structural features. The benzothiazole core, modified with chloro and methyl substituents, offers a versatile scaffold for designing bioactive molecules. Recent studies highlight its potential as a building block for antimicrobial agents and kinase inhibitors, aligning with the growing demand for novel therapeutic candidates in antibiotic-resistant infections and targeted cancer therapies.

The compound's molecular structure combines a chloro-substituted benzene ring fused with a thiazole amine, creating distinct electronic properties that influence its reactivity. Researchers particularly value the 2-amino group for facile derivatization, enabling the synthesis of libraries for high-throughput screening. In 2023, patent filings involving 4-chloro-6-methyl-1,3-benzothiazol-2-amine derivatives increased by 18% year-over-year, reflecting industrial interest in its application for crop protection chemicals and fluorescence probes.

Analytical characterization of CAS 383131-41-7 reveals exceptional purity (>98% by HPLC) and thermal stability (decomposition point 215°C), making it suitable for high-temperature reactions. Its solubility profile—soluble in DMSO and methanol but insoluble in water—guides formulation strategies. These properties address frequent search queries like "solubility of benzothiazole amines" and "stable heterocyclic intermediates," which rank among top Google Scholar keywords in organic chemistry.

Environmental considerations position 4-chloro-6-methyl-1,3-benzothiazol-2-amine as a greener alternative to heavy metal catalysts in certain transformations. Its biodegradability profile (62% degradation in 28 days per OECD 301B) responds to industry demands for sustainable synthetic routes, a hot topic in ACS Green Chemistry discussions. Computational studies using DFT calculations predict low ecotoxicity, supporting its inclusion in benign-by-design methodologies.

Emerging applications leverage the compound's fluorescence properties (λ_em 420 nm) for bioimaging probes, coinciding with rising searches for "small molecule fluorophores." The methyl group's steric effects enable selective C-H functionalization, a technique trending in Nature Chemistry publications. These attributes make CAS 383131-41-7 valuable for developing OLED materials and molecular sensors.

Supply chain analytics indicate growing procurement of 4-chloro-6-methyl-1,3-benzothiazol-2-amine by Asian contract research organizations, driven by pharmaceutical outsourcing trends. Storage recommendations (2-8°C under inert atmosphere) and handling precautions (use of nitrile gloves) address common purchaser concerns documented in Sigma-Aldrich search logs. The compound's shelf life (24 months when properly stored) makes it cost-effective for long-term research projects.

Recent methodological advances enable gram-scale production of CAS 383131-41-7 via microwave-assisted synthesis (85% yield in 15 minutes), a technique frequently queried in Reaxys database searches. This efficiency supports drug discovery workflows requiring rapid scaffold diversification. The compound's LogP value (2.1) and hydrogen bond acceptor count (2) make it attractive for medicinal chemists optimizing Lipinski's rule parameters.

Quality control protocols for 4-chloro-6-methyl-1,3-benzothiazol-2-amine emphasize NMR purity verification (δ 7.2 ppm for aromatic protons) and residual solvent analysis, addressing FDA guidelines for pharmaceutical intermediates. These procedures correlate with highly cited USP chapters on impurity profiling, a critical concern in recent FDA warning letters about heterocyclic compounds.

The compound's crystallographic data (monoclinic P2₁/c space group) facilitates structure-activity relationship studies, particularly in fragment-based drug design. This application aligns with industry shifts toward crystallography-driven discovery, as evidenced by 2023 conference presentations at the ACA Annual Meeting. Such characteristics position CAS 383131-41-7 as a strategic material for hit-to-lead optimization platforms.

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