O-Phenetidine, known by its chemical name 2-ethoxyaniline and CAS number 94-70-2, is a chemical compound of considerable industrial importance. Characterized as a colorless oily liquid, its molecular formula is C8H11NO, with a molecular weight of 137.18 g/mol. These fundamental properties, along with its reactivity profile, position it as a key intermediate across various manufacturing sectors.

The physical characteristics of O-Phenetidine are crucial for its handling and application. As a liquid at room temperature, it facilitates easier processing in chemical synthesis compared to solid intermediates. Its solubility in organic solvents like ethanol and ether, coupled with limited water solubility, dictates its use in specific reaction media. While typically colorless, it can darken upon exposure to light and air, emphasizing the need for proper storage conditions – ideally in a cool, sealed environment away from direct sunlight, often packaged in drums.

The industrial significance of O-Phenetidine stems largely from its versatile role as a chemical intermediate. Its primary application lies within the dye industry, where it is indispensable for synthesizing azo coupling components, most notably phenolic AS-PH. These components are vital for creating dyes used extensively in textiles, printing, and other coloring applications. The compound’s amino group allows for diazotization and subsequent coupling reactions, enabling the formation of a wide spectrum of colored compounds.

Furthermore, O-Phenetidine serves as a critical building block in the pharmaceutical industry. It acts as a precursor in the synthesis of various Active Pharmaceutical Ingredients (APIs), contributing to the production of medicines such as analgesics and anti-inflammatory agents. The specific structural features of O-Phenetidine can be manipulated through chemical reactions to yield compounds with desired therapeutic properties. This makes it a valuable asset in the ongoing development of new pharmaceuticals.

The compound also finds application in the perfume industry, where its aromatic properties contribute to the formulation of fragrances. By incorporating O-Phenetidine, perfumers can achieve complex and appealing scent profiles for consumer products.

For manufacturers and researchers, understanding the properties and applications of O-Phenetidine (CAS 94-70-2) is key to optimizing synthesis processes and developing innovative products. Companies like NINGBO INNO PHARMCHEM CO., LTD. are dedicated to providing high-quality O-Phenetidine, ensuring that industries have access to this essential chemical intermediate for their diverse needs.