For professionals in the chemical and material science industries, a thorough understanding of a compound's fundamental properties is crucial for successful application and procurement. Diphenyl Isophthalate (CAS 744-45-6) is one such compound, valued for its specific chemical characteristics. Knowing its molecular formula, structure, and CAS number is the first step for any scientist or procurement manager looking to buy Diphenyl Isophthalate.

What is Diphenyl Isophthalate (CAS 744-45-6)?

Diphenyl Isophthalate, chemically known as Isophthalic Acid Diphenyl Ester, is an organic compound. Its CAS number, 744-45-6, serves as a unique identifier in chemical databases, scientific literature, and regulatory contexts, ensuring clarity and precision when discussing or searching for this material. The molecular formula for Diphenyl Isophthalate is C20H14O4, indicating its composition of carbon, hydrogen, and oxygen atoms arranged in a specific structure.

Structurally, Diphenyl Isophthalate is an aromatic diester. It is formed from isophthalic acid, where the carboxylic acid groups have reacted with phenol to form ester linkages. This structure contributes to its thermal stability and its utility as an intermediate in creating more complex molecules or polymers.

Key Chemical Properties and Specifications

When you purchase Diphenyl Isophthalate, understanding its typical specifications is important. Most reputable manufacturers, especially those in China, will list a minimum purity of 99.5%. This high purity is often necessary for its use in synthesis, where impurities could interfere with reactions or affect the properties of the final product. The physical appearance is generally described as a white solid, which is consistent across various suppliers.

For research and development purposes, or for industrial applications requiring precise chemical behavior, details like melting point are vital. Diphenyl Isophthalate typically melts in the range of 136-138 °C, providing a key parameter for identification and quality control. While boiling point and flash point data are also available, they are less commonly cited in basic product overviews compared to purity and melting point.

Sourcing Diphenyl Isophthalate

Finding a reliable supplier for Diphenyl Isophthalate is made easier by utilizing its CAS number (744-45-6) in search queries. This ensures that you are targeting the correct compound. Companies specializing in fine chemicals and intermediates, including many leading manufacturers in China, offer this product with guaranteed purity and competitive pricing.

When engaging with a potential supplier, it is always advisable to request their product specification sheet and a Certificate of Analysis (COA) for the specific batch you intend to purchase. This documentation will confirm the chemical's identity, purity, and other critical properties, giving you confidence in your decision to buy Diphenyl Isophthalate.

Understanding the fundamental chemical properties of Diphenyl Isophthalate is the first step towards its effective utilization in various industrial and research settings. By leveraging its unique CAS number and prioritizing high-purity sources, you can ensure the success of your projects.