N,N-Dimethyl-p-toluidine (CAS 99-97-8) is a chemical compound notable for its distinct properties and widespread utility across various industrial applications. As a light yellow oily liquid with a high purity assay (typically ≥99%), it serves as a crucial component in polymerization processes and as a valuable intermediate in chemical synthesis. Understanding its chemical and physical characteristics is key for any R&D scientist or procurement manager looking to leverage its capabilities.

Physically, N,N-Dimethyl-p-toluidine presents as a clear, light yellow, oily liquid. Its molecular formula is C9H13N, with a molecular weight of approximately 135.21 g/mol. Key physical properties include a melting point around -25°C and a boiling point of approximately 211°C. It is sparingly soluble in water but miscible with many common organic solvents like alcohol, ether, and chloroform. Importantly, it is sensitive to light and decomposes when exposed, necessitating appropriate storage conditions—typically in a cool, dry, well-ventilated place, away from direct sunlight and light sources.

Chemically, N,N-Dimethyl-p-toluidine is classified as an aromatic tertiary amine. This structural feature underpins its efficacy as a photoinitiator for acrylonitrile (AN) polymerization. Under UV irradiation, it initiates the radical polymerization of AN, a critical step in producing polyacrylonitrile and related polymers. Its performance in this capacity is significant, with polymerization rates showing dependencies on reactant concentrations.

Beyond its photoinitiator role, N,N-Dimethyl-p-toluidine is widely employed as an accelerator and hardener in various resin systems. This includes its use in the curing of unsaturated polyesters, acrylate resins, and epoxy resins. In the dental industry, it acts as an accelerator in dental cements and is integral to the formulation of acrylic denture materials. Furthermore, it serves as a building block or intermediate in the synthesis of dyes and pesticides, showcasing its versatility in fine chemical manufacturing.

For businesses seeking to buy N,N-Dimethyl-p-toluidine, it is essential to partner with a reliable manufacturer and supplier. As a leading N,N-Dimethyl-p-toluidine supplier in China, we provide a product that meets high purity standards and offers competitive pricing. Understanding these properties allows you to optimize its use in your applications. If you are looking to purchase this vital chemical intermediate, please contact us to discuss your needs and secure a consistent supply chain.