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• 2. Excellent lithium ion storage property of porous MnCo2O4 nanorods?
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• 3. Fe/Fe3C@C nanoparticles encapsulated in N-doped graphene–CNTs framework as an efficient bifunctional oxygen electrocatalyst for robust rechargeable Zn–air batteries?
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• 4. EWOD-driven droplet microfluidic device integrated with optoelectronic tweezers as an automated platform for cellular isolation and analysis?
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6-Chloro-5-ethoxypyrimidin-4-amine (CAS No. 5018-42-8): A Comprehensive Overview

The chemical compound 6-chloro-5-ethoxypyrimidin-4-amine (CAS No. 5018-42-8) is a specialized pyrimidine derivative that has garnered significant attention in pharmaceutical and agrochemical research. This heterocyclic amine, characterized by its chloro and ethoxy functional groups, serves as a versatile intermediate in the synthesis of bioactive molecules. Researchers and industry professionals frequently search for terms like "6-chloro-5-ethoxypyrimidin-4-amine uses", "CAS 5018-42-8 synthesis", and "pyrimidine derivatives in drug discovery", reflecting its relevance in modern chemistry.

From a structural perspective, 6-chloro-5-ethoxypyrimidin-4-amine belongs to the aminopyrimidine class, which forms the backbone of numerous nucleobases and pharmaceutical compounds. The presence of both electron-withdrawing (chloro) and electron-donating (ethoxy) groups creates unique electronic properties that make it valuable for structure-activity relationship (SAR) studies. Recent publications in journals like Bioorganic & Medicinal Chemistry Letters highlight its role in developing kinase inhibitors, addressing trending topics in cancer research and precision medicine.

The synthesis of CAS 5018-42-8 typically involves multi-step reactions starting from barbituric acid derivatives, with the chlorination and etherification being critical steps. Process optimization queries such as "6-chloro-5-ethoxypyrimidin-4-amine yield improvement" and "green chemistry approaches for pyrimidine synthesis" dominate academic discussions, aligning with the global push toward sustainable chemical manufacturing. Advanced techniques like microwave-assisted synthesis have shown promise in enhancing the efficiency of producing this compound.

In pharmaceutical applications, 6-chloro-5-ethoxypyrimidin-4-amine acts as a precursor for antiviral and antifungal agents, particularly in the development of non-nucleoside reverse transcriptase inhibitors (NNRTIs). Its structural motif appears in several investigational drugs targeting RNA viruses, a hot topic since the COVID-19 pandemic. Additionally, its agrochemical potential is evident in patents covering crop protection formulations, where modified pyrimidines demonstrate herbicidal and fungicidal activity.

The commercial landscape for 5018-42-8 reflects growing demand from contract research organizations (CROs) and generic drug manufacturers. Market analyses reveal increased searches for "6-chloro-5-ethoxypyrimidin-4-amine suppliers" and "pyrimidine building blocks pricing trends", driven by expanding applications in combinatorial chemistry. Regulatory compliance remains a key consideration, with manufacturers adhering to REACH and GMP standards to ensure quality control.

From an analytical standpoint, characterization of 6-chloro-5-ethoxypyrimidin-4-amine employs techniques like HPLC, NMR, and mass spectrometry. Purity assessment methods (e.g., chromatographic analysis of pyrimidine derivatives) are frequently discussed in quality assurance forums. The compound typically appears as a white to off-white crystalline powder with defined melting points and solubility profiles in organic solvents—properties critical for formulation scientists.

Emerging research explores the compound's potential in material science, particularly in designing organic semiconductors and coordination polymers. This interdisciplinary application responds to searches for "pyrimidine-based functional materials", connecting traditional medicinal chemistry with cutting-edge nanotechnology. Such developments position CAS 5018-42-8 as a multifaceted tool in both life sciences and advanced materials.

Storage and handling recommendations for 6-chloro-5-ethoxypyrimidin-4-amine emphasize stability under inert atmospheres and protection from moisture, reflecting standard practices for amino-substituted heterocycles. Safety data sheets (SDS) provide essential guidance, while environmental considerations focus on biodegradation pathways of pyrimidine compounds—an area of growing regulatory interest.

In conclusion, 6-chloro-5-ethoxypyrimidin-4-amine (CAS No. 5018-42-8) represents a critical building block at the intersection of medicinal chemistry, agriculture, and materials science. Its continued relevance is evidenced by persistent research interest and commercial demand, making it a compound worthy of attention in specialized chemical inventories and research pipelines worldwide.

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