For procurement managers and R&D scientists in the chemical and pharmaceutical industries, precise product specifications and dependable supplier information are critical. This article provides a comprehensive overview of 3,3-Diphenylpropionic acid (CAS 606-83-7), detailing its key characteristics and guiding you on how to source it effectively from China.

Product Identification and Key Specifications

3,3-Diphenylpropionic acid is identified by its CAS number 606-83-7. Its common synonyms include Benzenepropanoic acid, β-phenyl-; Propionic acid, 3,3-diphenyl-; and Diphenylpropionic acid. The compound typically presents as a white to light yellow crystalline powder, indicating a solid physical form at room temperature.

Key specifications that buyers should look for when sourcing this material include:

  • Purity: For most applications, particularly in pharmaceutical synthesis, a purity of ≥99% is required. Higher purity minimizes the risk of unwanted byproducts and ensures the integrity of downstream processes.
  • Appearance: White to light yellow crystalline powder. Any deviation from this can indicate potential quality issues or contamination.
  • Molecular Formula: C15H14O2
  • Molecular Weight: 226.27 g/mol
  • Melting Point: Typically in the range of 151-155 °C (literature values). A sharp melting point within this range is indicative of high purity.
  • Solubility: Slightly soluble in water, but soluble in common organic solvents like ethanol and ether. This property is important for selecting appropriate reaction and purification solvents.

Safety and Handling Information

According to hazard classifications, 3,3-Diphenylpropionic acid is often labeled as an irritant (Xi), with risk codes such as 36/37/38 indicating irritation to eyes, respiratory system, and skin. Appropriate personal protective equipment (PPE), including gloves, eye protection, and respiratory protection, should be used when handling this chemical. Always refer to the Material Safety Data Sheet (MSDS) for detailed safety information.

Sourcing from China: Manufacturer and Supplier Landscape

China boasts a significant number of chemical manufacturers and suppliers specializing in fine chemicals and pharmaceutical intermediates. When looking to purchase 3,3-Diphenylpropionic acid, buyers can leverage this robust supply base. Key considerations when selecting a supplier include:

  • Manufacturing Capability: Verify the supplier's production capacity and adherence to quality management systems (e.g., ISO).
  • Product Consistency: Ensure the supplier can provide consistent quality across batches, backed by comprehensive Certificates of Analysis (CoA).
  • Competitive Pricing: Obtain multiple quotes to compare prices for different order quantities. Direct manufacturers often offer better pricing than distributors.
  • Logistics and Export Experience: Choose suppliers with experience in international shipping to ensure timely and compliant delivery to your location.
  • Customer Service: Responsive and knowledgeable customer support is vital for resolving any queries or issues promptly.

For those seeking to buy 3,3-Diphenylpropionic acid, engaging with experienced Chinese chemical manufacturers is a strategic move. By carefully evaluating supplier credentials and product specifications, you can secure a reliable source of this essential chemical intermediate, ensuring your research and production endeavors are well-supported.