CAS · 92-52-4
Product Overview
Biphenyl is a high-purity pharmaceutical-intermediates supplied for industrial and specialty chemical applications. Contact our team for specifications, packaging options and lead times.
Product Specifications
| Appearance | Colorless to light yellow transparent liquid. It will turn into a solid state when the temperature is lower than the melting point. |
|---|---|
| Content (GC) | 99.9% min |
| Sulphur content | 10 ppm max |
| Chloride ion content | 10 ppm max |
| APHA | 13 max |
| Melting point (MP) | 68–71 ℃ |
| Benzene dissolved test | Visual inspection reveals no insoluble substances |
Applications
Biphenyl (CAS 92-52-4) is an important aromatic hydrocarbon used across chemical manufacturing, materials science, and industrial applications. It serves as a key intermediate in the synthesis of pharmaceuticals, agrochemicals, dyes, and specialty chemicals, where the rigid biphenyl structure is incorporated to enhance molecular stability and hydrophobicity. In polymer and materials industries, biphenyl is used in the production of heat-resistant plastics, liquid crystal materials, and high-performance resins, contributing to improved thermal and mechanical properties. It is also applied as a precursor or structural unit in organic electronic materials, including OLEDs and other optoelectronic components, due to its conjugated aromatic system. Additionally, biphenyl has been used as a post-harvest fungistatic agent to protect citrus fruits during storage and transportation, and it is employed in laboratory and industrial settings as a heat-transfer medium and research reagent.
Benefits
The benefits of biphenyl arise from its unique structural and physicochemical properties. The two directly linked benzene rings create a rigid, planar or near-planar aromatic system that offers excellent thermal stability and chemical resistance, making it suitable for high-temperature and demanding industrial applications. Its hydrophobic and non-polar nature contributes to improved durability and performance when incorporated into polymers and specialty materials. Biphenyl also provides design flexibility for chemists, as it can be readily functionalized at multiple positions to generate a wide range of derivatives with tailored electronic, optical, or biological properties. From a production standpoint, biphenyl is well understood, commercially available, and amenable to large-scale manufacturing, supporting consistent quality and cost efficiency. These advantages make it a reliable and versatile building block for both industrial processes and advanced material development.
Conclusion
Biphenyl is a foundational aromatic compound with broad utility in chemical synthesis, materials engineering, and industrial applications. Its stable, conjugated structure enables the development of high-performance polymers, electronic materials, and functional intermediates, while its versatility supports extensive chemical modification. As industries continue to demand materials with greater thermal stability, durability, and functional performance, biphenyl will remain a valuable and widely used component in modern chemical and materials science innovation.
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