p-Terphenyl
p-Terphenyl (CAS: 92-94-4, C18H14) is a stable organic compound with a molar mass of 230.30 g/mol. It is known for its fluorescent properties and is commonly employed as a scintillator and in various spectroscopic applications. This high-purity chemical is suitable for demanding analytical procedures and specialised synthesis.
- IUPAC
- 1,4-Diphenylbenzene,PT,PTP
- Synonyms
- 1,1-Biphenyl-4-ylbenzene1,4-DiphenylbenzenePTPPTp-Quaterphenyl
Scintillation Counting
p-Terphenyl is widely utilized as a primary scintillator in liquid and plastic scintillation cocktails. It efficiently converts high-energy radiation into detectable light pulses, crucial for radioactive sample analysis.
Fluorescence Spectroscopy
Its inherent fluorescence makes p-Terphenyl a valuable reagent for spectrofluorometric studies. It can serve as a standard or be incorporated into fluorescent probes for detection and analysis.
Organic Synthesis
As an arene building block, p-Terphenyl can be employed in organic synthesis for constructing more complex polyaromatic systems or functionalised derivatives.
Analytical Chemistry
The compound's well-defined spectroscopic properties make it suitable for use as an analytical reagent, particularly in chromatography and UV absorption calibration.
| Molecular weight | 230.30 |
|---|---|
| Linear formula | C6H5C6H4C6H5 |
| Assay | ≥98.5% (HPLC) |
| Boiling point | 389 °C(lit.) |
| Vapour density | 7.95 (vs air) |
| Suitability | suitable for scintillation |
| Melting point | 212-213 °C(lit.)212-214 °C |
Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H400Very toxic to aquatic life
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 207 °C / 404.6 °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) | 26-60-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| λ | in ethanol |
|---|---|
| Uv Absorption | λ: 277 nm Amax: ≥98.5% |
| Fluorescence | λex 286 nm; λem 343 nm in DMF |
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 p-Terphenyl (CAS 92-94-4) used for?
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p-Terphenyl is primarily used as a scintillator in radiation detection, in fluorescence spectroscopy, and as a building block in organic synthesis.
What is the CAS number and chemical formula for p-Terphenyl?
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The CAS number for p-Terphenyl is 92-94-4, and its chemical formula is C18H14 (linear formula: C6H5C6H4C6H5).
What grade and purity does Tech Serve Solutions supply for p-Terphenyl?
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Tech Serve Solutions supplies p-Terphenyl with an assay of ≥98.5% (HPLC), suitable for scintillation. We do not represent this product as USP, BP, or EP grade.
How should p-Terphenyl be handled safely?
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Handle p-Terphenyl with appropriate personal protective equipment, including a dust mask (N95 type), eyeshields, and gloves. Avoid breathing dust and ensure good ventilation. It is classified as a skin, eye, and respiratory irritant and is toxic to aquatic life with long-lasting effects (H315, H319, H335, H400).
How is p-Terphenyl packed and exported?
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p-Terphenyl is packed and exported according to stringent international regulations, including UN 3077 for transport, ensuring safe and compliant delivery worldwide.
How can I request a quote or sample for p-Terphenyl?
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To request a quote or a sample of p-Terphenyl, please contact our sales team via the website or by telephone, providing your specific requirements.
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