Dimethyl Phthalate (DMP), identified by its CAS number 131-11-3, is a testament to the ingenuity of organic chemistry, serving as a critical compound in various industrial applications. Its synthesis, physical characteristics, and chemical structure underpin its utility as a plasticizer, solvent, and intermediate. Understanding these scientific fundamentals is key for manufacturers and researchers looking to leverage DMP effectively. The production of DMP typically involves the esterification of phthalic anhydride with methanol, a process that yields a compound with specific and desirable properties.

Chemically, Dimethyl Phthalate is the dimethyl ester of phthalic acid. Its molecular formula, C10H10O4, and a molar mass of approximately 194.18 g/mol, provide the basis for its reactivity and interactions. The molecule features a benzene ring with two adjacent carboxylate groups, each esterified with a methyl group. This structure contributes to its characteristics, such as its relatively low volatility compared to smaller esters and its polarity, which influences its solvent capabilities. Exploring the 'synthesis of Dimethyl Phthalate' reveals the precise conditions required to achieve high purity and yield.

The physical properties of DMP are crucial for its industrial applications. It exists as a colorless, oily liquid at room temperature, with a melting point of around 2°C and a boiling point of approximately 283°C. This liquid state and moderate volatility are advantageous for its use as a solvent and plasticizer. Its density is slightly higher than water, and it exhibits limited solubility in water but good solubility in organic solvents, which guides its application in formulations. The consistent quality of DMP from a 'chemical intermediate manufacturer' ensures predictable performance in downstream processes.

The application of Dimethyl Phthalate extends to being a plasticizer for cellulose acetate, improving its film-forming and mechanical properties. This is vital for industries producing films, varnishes, and molding powders. As a solvent, it is used in lacquers and coatings, contributing to smooth application and finish. Furthermore, its role as a fixative in fragrances and as an active ingredient in insect repellents showcases its diverse chemical functionalities. Companies often inquire about 'DMP purity for cosmetic applications' or 'technical grade Dimethyl Phthalate' to match specific requirements.

The scientific understanding of Dimethyl Phthalate’s properties also informs its safe handling and storage. Its stability under normal conditions, along with recommended precautions against incompatible materials like strong oxidizing agents, is essential knowledge for any industrial user. For those seeking to 'purchase Dimethyl Phthalate', consulting detailed product specifications and safety data sheets from a reliable 'chemical supplier' is a prerequisite for responsible use.