Understanding the properties and applications of chemical intermediates is fundamental for R&D scientists, formulators, and procurement managers. 4-Methyldiphenylamine, identified by CAS number 620-84-8, is a significant organic intermediate with a range of important uses across various industries. This article provides a comprehensive overview of this compound, its key characteristics, and how to source it effectively.

What is 4-Methyldiphenylamine?

4-Methyldiphenylamine, also known by synonyms such as 4-Methyl-N-phenylaniline or Phenyl-p-tolyl-amine, is an aromatic amine derivative. Its chemical formula is C13H13N, and it has a molecular weight of approximately 183.25 g/mol. Typically, it appears as a white to off-white crystalline powder. A crucial characteristic for its application is its solubility: it is insoluble in water but readily soluble in common organic solvents like benzene, toluene, methanol, and ethanol. Its melting point is around 90°C, and it possesses a boiling point of approximately 317°C.

Key Properties and Applications

The primary utility of 4-Methyldiphenylamine lies in its role as an intermediate in organic synthesis. Its structure, featuring a methyl group on one phenyl ring and a secondary amine linkage to another phenyl ring, makes it a valuable building block for creating more complex molecules.

• OLED Materials: A significant application is in the synthesis of organic materials for OLED displays. Derivatives of 4-Methyldiphenylamine are used in charge-transport layers, contributing to the efficiency and performance of electronic devices.
• Pharmaceutical Intermediates: It serves as a key intermediate in the synthesis of various pharmaceutical compounds, where its unique structure can impart specific biological activities.
• Dyestuffs: The compound is employed in the creation of specialized dyes, providing specific color properties and stability to finished products.
• Antioxidants: Its properties also lend themselves to use as an antioxidant or stabilizer in polymers and other organic materials.

Sourcing 4-Methyldiphenylamine: Finding Reliable Suppliers

For professionals looking to buy 4-methyldiphenylamine, identifying a dependable manufacturer in China is often a strategic choice due to competitive pricing and production capabilities. When selecting a 4-methyldiphenylamine supplier, consider the following:

• Purity: Ensure the purity meets your project requirements, typically 97% or 99% minimum for demanding applications.
• Technical Data: Request Certificates of Analysis (CoA) and Material Safety Data Sheets (MSDS).
• Price and Packaging: Compare 4-methyldiphenylamine price and inquire about available packaging options for your needs.
• Customer Service: Look for suppliers offering responsive communication and potential sample availability for testing.

By understanding the properties and applications of 4-Methyldiphenylamine (CAS 620-84-8) and partnering with reputable suppliers, businesses can effectively leverage this vital organic intermediate for their diverse chemical synthesis and material development projects.