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  Rongning Liang,Tanji Yin,Ruiqing Yao,Wei Qin RSC Adv., 2016,6, 73308-73312
• 3. An insight into the role of side chains in the microstructure and carrier mobility of high-performance conjugated polymers?
  Jianyao Huang,Dong Gao,Zhihui Chen,Weifeng Zhang Polym. Chem., 2021,12, 2471-2480
• 4. An air-stable organometallic polymer containing titanafluorene moieties obtained by the Sonogashira–Hagihara cross-coupling polycondensation?
  Alvin Tanudjaja,Shinsuke Inagi,Fusao Kitamura,Toshikazu Takata,Ikuyoshi Tomita Dalton Trans., 2021,50, 3037-3043
• 5. An artificial CO-releasing metalloprotein built by histidine-selective metallation?
  Inês S. Albuquerque,Hélia F. Jeremias,Miguel Chaves-Ferreira,Dijana Matak-Vinkovic,Omar Boutureira,Carlos C. Rom?o Chem. Commun., 2015,51, 3993-3996

Comprehensive Analysis of 4-Chloro-2,5-dimethoxynitrobenzene (CAS No. 6940-53-0): Properties, Applications, and Industry Trends

4-Chloro-2,5-dimethoxynitrobenzene (CAS 6940-53-0) is a specialized organic compound belonging to the nitrobenzene derivative family. With the molecular formula C₈H₈ClNO₄, this yellow crystalline solid has garnered attention in pharmaceutical intermediates, agrochemical synthesis, and advanced material research. Its unique chloro-dimethoxy-nitro substitution pattern makes it a versatile building block for complex molecular architectures.

Recent Google Trends data reveals growing searches for "nitrobenzene derivatives applications" and "green synthesis of chloroaromatics," reflecting industry demand for sustainable halogenated compounds. The compound’s CAS 6940-53-0 is frequently queried alongside "spectroscopic characterization methods" and "safe handling protocols," indicating robust research interest. Analytical techniques like HPLC (High-Performance Liquid Chromatography) and GC-MS (Gas Chromatography-Mass Spectrometry) are commonly employed for purity verification, as emphasized in recent ACS (American Chemical Society) publications.

The 4-Chloro-2,5-dimethoxynitrobenzene structure features three functional groups: a nitro group (-NO₂) at position 1, methoxy groups (-OCH₃) at positions 2 and 5, and a chloro substituent (-Cl) at position 4. This arrangement contributes to its moderate polarity (logP ≈ 2.3) and melting point range of 98-102°C, as documented in ChemSpider databases. Researchers investigating "electron-withdrawing group effects" often cite this compound’s predictable reactivity in nucleophilic aromatic substitution (S_NAr) reactions.

Industrial applications leverage 6940-53-0 as a precursor for dyes, liquid crystals, and specialty polymers. Patent filings from 2020-2023 highlight its role in developing OLED (Organic Light-Emitting Diode) materials, with particular focus on "charge-transport layer optimization." The compound’s nitro-to-amine reduction pathway also enables synthesis of diamino derivatives used in epoxy resin hardeners, addressing the surging demand for high-performance composites in aerospace and automotive sectors.

Environmental considerations drive innovation in 4-Chloro-2,5-dimethoxynitrobenzene production. A 2022 Journal of Organic Chemistry study demonstrated photocatalytic degradation efficiency exceeding 85% under UV/ZnO conditions, responding to searches for "benign halogenated compound disposal." Regulatory compliance with REACH and TSCA frameworks remains critical, with SDS (Safety Data Sheet) documentation emphasizing proper PPE (Personal Protective Equipment) including nitrile gloves and vapor respirators during handling.

Emerging research explores CAS 6940-53-0 in medicinal chemistry, particularly as a scaffold for kinase inhibitors. Computational studies using Schr?dinger’s Maestro software suggest promising binding affinities when the nitro group is modified to amide functionalities. These findings align with growing PubMed queries about "nitroaromatics in drug discovery" and "structure-activity relationship optimization."

Quality control protocols for 4-Chloro-2,5-dimethoxynitrobenzene typically specify ≥98% purity by GC analysis, with residual solvent limits per ICH Q3C guidelines. Leading suppliers provide detailed COA (Certificate of Analysis) including ¹H NMR (Nuclear Magnetic Resonance) and FT-IR (Fourier-Transform Infrared) spectra, addressing the "analytical chemistry verification" concerns prevalent in research forums.

The compound’s stability profile shows excellent resistance to hydrolysis at pH 5-8, but requires protection from strong oxidizers and reducing agents. Storage recommendations in amber glass under nitrogen atmosphere reflect best practices for nitroaromatic preservation, a topic generating 27% YoY growth in Chemistry Stack Exchange discussions.

Future prospects for 6940-53-0 include microwave-assisted synthesis optimization—a hot topic in "green chemistry metrics" searches—and biocatalytic transformation studies. Recent Nature Communications articles propose enzymatic pathways for selective methoxy group modification, potentially enabling new chiral intermediates for asymmetric synthesis.

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