In the vast landscape of chemical synthesis, certain molecules emerge as indispensable building blocks, facilitating the creation of a wide array of complex compounds. p-Tolualdehyde (CAS 104-87-0) is one such critical intermediate. Characterized by its clear, colorless to pale yellow liquid form, this aldehyde derivative of toluene is a staple for chemists and manufacturers in various sectors, from advanced electronics to fine chemical production. Understanding its properties and sourcing effectively is key to unlocking its full potential.

The chemical identity of p-Tolualdehyde is well-defined by its CAS number 104-87-0 and molecular formula C8H8O, with a molecular weight of 120.15. Its physical characteristics, including a density of 1.015 g/cm³, a boiling point of 204.5 °C, and a flash point of 80 °C, provide essential parameters for its handling and application in diverse chemical processes. Its limited solubility in water (0.25 g/L at 25 ºC) also dictates its suitability for specific reaction environments, often requiring organic solvents.

The aldehyde group on p-Tolualdehyde makes it highly reactive and a versatile reactant in numerous organic transformations. It readily undergoes nucleophilic addition, condensation reactions, and can be oxidized or reduced. These properties position it as a valuable starting material for synthesizing a range of more complex molecules. For R&D scientists, this means p-Tolualdehyde can be a key component in developing new pharmaceutical intermediates, agrochemicals, specialty polymers, and fragrances. When considering to buy p-tolualdehyde for such applications, the focus is on purity and consistent reactivity.

The electronic chemicals industry, in particular, relies heavily on p-Tolualdehyde for the formulation of photoresists, critical components in the lithographic processes used to manufacture semiconductors and microelectronic devices. Its specific chemical structure contributes to the desired properties of photoresists, such as resolution and sensitivity. For businesses in this sector, sourcing from reliable manufacturers and suppliers, often found in China due to advanced chemical manufacturing capabilities, is a strategic necessity. Searching for 'p-tolualdehyde for photoresist formulation' or '4-methyl benzaldehyde supplier' will guide buyers towards key industry players.

In summary, p-Tolualdehyde is more than just a chemical intermediate; it's an enabler of innovation across multiple industries. Its consistent quality, well-defined properties, and versatile reactivity make it a preferred choice for synthesis chemists. For procurement managers, understanding the market and identifying dependable sources, particularly those offering bulk quantities at competitive prices, is essential for ensuring the smooth operation and advancement of their respective fields.