For chemists, researchers, and production managers, a thorough understanding of a chemical intermediate's profile is crucial for its effective application and procurement. m-Anisidine, known by its CAS number 536-90-3, is an aromatic amine with distinct properties that underpin its importance in various industrial syntheses. As a dedicated m-Anisidine manufacturer and supplier, we provide a detailed look at its chemical profile, physical characteristics, and manufacturing considerations to aid professionals in their work.

Physical and Chemical Properties of m-Anisidine

m-Anisidine, chemically identified as 3-methoxyaniline or meta-anisidine, presents as a clear yellow to brown liquid. Its physical state at room temperature, coupled with its solubility in common organic solvents like ethanol, ether, and benzene, facilitates its handling and use in various reaction media. While slightly soluble in water, its preference for organic solvents makes it suitable for reactions where water presence is detrimental. The molecular formula of m-Anisidine is C7H9NO, with a molecular weight of 123.15 g/mol. Its EINECS number is 208-651-4.

Key physical properties include:

  • Melting Point: Approximately -1 to 1 °C. This low melting point confirms its liquid state under standard laboratory and industrial conditions.
  • Boiling Point: Around 251 °C. This high boiling point indicates its relative stability at elevated temperatures during processing.
  • Density: Typically around 1.096 g/mL at 25 °C.
  • Refractive Index: Reported as n20/D 1.581.
  • Flash Point: Greater than 230 °F, indicating a relatively low flammability risk under normal handling conditions.
  • Acidity Coefficient (pKa): Approximately 4.23 at 25°C, reflecting its basic nature due to the amino group.

Chemically, the presence of both the amino (-NH2) and methoxy (-OCH3) groups on the benzene ring makes m-Anisidine a versatile intermediate. The amino group can undergo diazotization, acylation, and alkylation reactions, while the methoxy group can influence electron density and reactivity on the aromatic ring. These reactive sites are fundamental to its application in synthesizing complex molecules like azo dyes and liquid crystal components. For scientists looking to buy m-Anisidine, understanding these properties is key to successful synthesis design.

Manufacturing and Quality Control Insights

As a manufacturer, ensuring consistent quality requires stringent control over the synthesis and purification processes. The production of m-Anisidine typically involves established chemical synthesis routes, followed by purification steps to achieve the desired purity levels. For example, distillation is often employed to separate m-Anisidine from by-products and achieve its characteristic clarity and color. Quality control measures, including chromatographic analysis (e.g., GC or HPLC) and spectroscopic methods, are essential to verify purity and adherence to specifications. We, as a supplier, prioritize these quality checks to guarantee that our m-Anisidine meets the high standards expected by our customers, especially those in demanding industries like pharmaceuticals and electronics.

Procurement Considerations for m-Anisidine

When procuring m-Anisidine, understanding its chemical profile is directly linked to selecting the right supplier. A manufacturer that can consistently deliver product meeting the specified properties, such as a 99% minimum assay and a clear yellow to brown liquid appearance, is invaluable. Factors like packaging (commonly in 200kg drums) and storage recommendations (cool, dry place, often refrigerated at 2-8°C) also reflect the care taken by the supplier. For businesses looking to purchase m-Anisidine, partnering with a knowledgeable manufacturer and supplier ensures access to a reliable chemical intermediate, enabling innovation and efficient production.