I. Outstanding Properties: The Foundation of Applications
O-chloroaniline, also known as 2-chloroaniline or o-aminochlorobenzene, appears as an alluring amber-colored liquid with an ammonia-like odor. When left standing in the air, its color gradually darkens, as if narrating its distinctive “personality.” In terms of chemical composition, its chemical formula is C₆H₆ClN, with a relative molecular mass of 127.57. The presence of a chlorine atom in its molecular structure endows it with weaker basicity compared to aniline (pKa = 2.636 at 25°C, while aniline has pKa = 4.595 at 25°C), a characteristic that profoundly influences its chemical reaction behavior.
Regarding solubility, it is almost insoluble in water but has a strong affinity for acids and most common organic solvents. It can readily dissolve in solvents such as ethanol and ether. This unique solubility provides possibilities for its applications in various chemical scenarios. Its physical properties are equally remarkable, with a relative density of 1.213, a boiling point of 209°C, and a flash point of 98°C. These precise data serve as important “safety guidelines” for its production, storage, and transportation.
II. Diverse Applications: Empowering Various Industries
The Color Magician in the Dye Industry**: In the field of dyes, o-chloroaniline can be regarded as a powerful assistant to the “color magician.” As a diazo component of azo dyes, it is a key raw material for synthesizing acid dyes and direct dyes. For example, when producing classic dyes such as Permanent Red FR and Shahan Yellow HR, o-chloroaniline plays an indispensable role. Through a series of complex chemical reactions, it endows dyes with rich colors and excellent fastness. Moreover, as the diazo component of azo dyes, it helps create a variety of colors such as Acid Black and Acid Blue and also participates in the synthesis of organic lake Pigment Yellow R. These dyes are widely used in the textile and printing and dyeing industries, making our clothing and fabrics colorful. Whether it is fashionable clothing or home textiles, o-chloroaniline has made its “colorful contribution.”
The Health Guardian in the Pharmaceutical Field**: Thanks to its good chemical stability and biological activity, o-chloroaniline demonstrates its capabilities in the pharmaceutical field. It is a commonly used intermediate for modifying and synthesizing drug molecular structures. By subtly altering its structure, it participates in the research and production of various drugs, including antibacterial and anticancer drugs. For instance, in the synthesis of some antibacterial drugs, the introduction of o-chloroaniline optimizes the properties of drug molecules, enhancing antibacterial effects and safety, thus safeguarding human health.
The Defender of Farmland in the Pesticide Industry**: In pesticide production, o-chloroaniline is also an important component. It actively participates in the synthesis of insecticides and herbicides. As a key intermediate, it improves the efficacy and safety of pesticides. Taking some new herbicides as examples, the molecular structures constructed with the participation of o-chloroaniline enable them to act precisely on weeds, effectively inhibiting their growth while reducing adverse effects on crops and the environment. It protects the ecological balance of farmland, ensures the healthy growth of crops, and contributes to a bountiful harvest.
The Jack-of-All-Trades in Other Fields**: In addition to the above industries, o-chloroaniline is also an important raw material for preparing methylene bis(o-chloroaniline), a cross-linking agent for polyurethane resins. It serves as a “cornerstone” in the field of organic synthesis, helping to construct complex organic molecular structures. In laboratories, it is used as a common reagent and participates in experimental projects such as chemical analysis and medical testing, providing crucial experimental support for researchers.
III. Quality Assurance: A Testament to Strength
The o-chloroaniline we supply is prepared using an advanced production process. It is synthesized from o-nitrochlorobenzene and methanol through precise processes such as hydrogenation reduction. Compared with traditional processes, this process uses high-quality anti-dechlorination agents, which significantly improve the reaction selectivity, reduce the generation rate of the by-product aniline, and remarkably increase the yield of o-chloroaniline. At the same time, the reaction time is greatly shortened to 3 hours, and the production efficiency increases significantly.
Moreover, the new process innovatively uses water instead of organic solvents during the reaction, which not only reduces reaction risks but also saves costs and is more environmentally friendly. The produced o-chloroaniline is of excellent quality. Through testing, the aniline content in the product is less than 0.5%, the purity of the main product is ≥99%, and the total yield reaches 93%. We control the quality from the source, strictly follow industry standards, and subject each batch of products to multiple inspection processes to ensure that they are delivered to customers in the best quality, laying a solid foundation for your production and scientific research projects.
O-chloroaniline stands out in the chemical raw materials market with its excellent properties, diverse applications, and reliable quality. Whether it is the color requirements of dye production, the health mission of pharmaceutical research and development, or the agricultural responsibilities of pesticide preparation, it can precisely meet the needs and provide efficient assistance. Choosing our o-chloroaniline means choosing quality and professionalism. Let’s join hands to embark on a new journey of innovative development in the chemical field!
Post time: Jul-21-2025
