Biphenyl
Biphenyl (CAS 92-52-4), with the molecular formula C₁₂H₁₀ and a molar mass of 154.21 g/mol, is an aromatic hydrocarbon. It appears as white crystalline flakes or powder. Biphenyl is primarily utilised as a heat transfer medium and as an intermediate in the synthesis of various organic compounds, including pesticides and dyes. It is also employed in the production of biphenyl-polychlorinated biphenyls (PCBs), though its use has declined due to environmental concerns.
Heat Transfer Medium
Biphenyl, often in eutectic mixtures with diphenyl ether, serves as a high-temperature heat transfer fluid. It offers excellent thermal stability for industrial processes.
Organic Synthesis Intermediate
It acts as a building block in the synthesis of more complex organic molecules. This includes its use in the production of certain dyes and agricultural chemicals.
Dye Production
Biphenyl is employed in the manufacturing of specific dyestuffs, contributing to the vibrant colours used across various industries.
Fungicide and Preservative
Historically, biphenyl has been used as a preservative for citrus fruits to prevent mould growth during storage and transport.
| Molecular weight | 154.21 |
|---|---|
| Linear formula | C6H5C6H5 |
| Assay | 99.5% |
| Grade | analytical standard |
| Boiling point | 255 °C(lit.) |
| Vapour pressure | 9.46 mmHg (115 °C) |
| Vapour density | 5.31 (vs air) |
| Melting point | 68-70 °C(lit.) |
| Autoignition temp | 1004 °F |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
- P501Dispose of contents and container per local regulations
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 110 °C / 230 °F |
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | Xi,N |
| Risk statements (R) | 36/37/38-50/53 |
| Safety statements (S) | 23-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| E Number | E230 |
|---|---|
| Expl Lim | 0.6 %, 111 °F5.8 %, 166 °F |
| Packaging | ampule of 1000 mg |
| Gene Information | human ... CYP1A2(1544), ESR1(2099) |
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Biphenyl (CAS 92-52-4) used for?
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Biphenyl is used as a heat transfer medium, an intermediate in organic synthesis for products like dyes and pesticides, and historically as a fruit preservative.
What are the CAS number and formula for Biphenyl?
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The CAS number for Biphenyl is 92-52-4, and its linear formula is C₆H₅C₆H₅.
What grade and purity does Tech Serve Solutions supply for Biphenyl?
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Tech Serve Solutions supplies Biphenyl as an analytical standard with an assay of 99.5%. We do not represent this product as meeting USP, BP, or EP pharmacopoeial standards unless explicitly stated.
How should Biphenyl be handled safely?
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Biphenyl is classified as a Warning hazard. It causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). It is also toxic to aquatic life with long-lasting effects (H410). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be worn. Handle in a well-ventilated area and avoid release into the environment.
How is Biphenyl packed and shipped by TSS?
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Biphenyl is supplied in ampules containing 1000 mg and is exported by TSS according to regulatory requirements, including UN 3077 classification.
How can I request a quote or sample of Biphenyl?
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Please contact our sales team through the website to request a quote or a sample of Biphenyl.
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