1,6-Diphenyl-1,3,5-hexatriene
1,6-Diphenyl-1,3,5-hexatriene (CAS: 1720-32-7) is an organic compound with the molecular formula C 6 H 5 (CH=CH) 3 C 6 H 5 and a molecular weight of 232.32 g/mol. This acyclic alkene, often referred to by its acronym DPH, is recognised for its fluorescent properties. It is primarily utilised in biochemical research as an alternative fluorescent probe for lipid droplet detection.
- IUPAC
- DPH,Dicinnamyl
- Synonyms
- 5-hexatriene,1720-32-7, C6H5(CH=CH)3C6H5, DPH, Dicinnamyl

Fluorescent Lipid Droplet Detection
1,6-Diphenyl-1,3,5-hexatriene serves as a fluorescent probe for the detection of lipid droplets within biological systems. It offers a valuable alternative to other common probes like Nile Red, providing researchers with options for specific experimental protocols.
Biochemical Research Reagent
As a specialised organic building block, this compound is employed in various biochemical research applications. Its fluorescent characteristics make it suitable for studies involving cellular components and molecular interactions.
Organic Synthesis Intermediate
The conjugated polyene structure of 1,6-Diphenyl-1,3,5-hexatriene positions it as a useful intermediate in organic synthesis. It can be incorporated into more complex molecular structures for advanced chemical research and development.
| Molecular weight | 232.32 |
|---|---|
| Linear formula | C6H5(CH=CH)3C6H5 |
| Assay | 98% |
| Application | Used an alternative to Nile red for fluorescent detection of lipid droplets |
| Melting point | 199-203 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Fluorescence | λex 350 nm; λem 452 nm in methanol |
|---|
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 1,6-Diphenyl-1,3,5-hexatriene used for?
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1,6-Diphenyl-1,3,5-hexatriene is primarily used as a fluorescent probe for detecting lipid droplets, serving as an alternative to Nile Red in biochemical research. It is also employed as an organic building block in chemical synthesis.
What are the CAS number and molecular formula for 1,6-Diphenyl-1,3,5-hexatriene?
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The CAS number for 1,6-Diphenyl-1,3,5-hexatriene is 1720-32-7, and its linear molecular formula is C 6 H 5 (CH=CH) 3 C 6 H 5 .
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,6-Diphenyl-1,3,5-hexatriene with an assay of 98%. TSS does not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 1,6-Diphenyl-1,3,5-hexatriene be handled safely?
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Based on GHS classifications, 1,6-Diphenyl-1,3,5-hexatriene is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves, should be used. Handle in a well-ventilated area.
Is 1,6-Diphenyl-1,3,5-hexatriene a controlled substance?
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The provided data does not indicate that 1,6-Diphenyl-1,3,5-hexatriene is a controlled substance.
How is 1,6-Diphenyl-1,3,5-hexatriene packed, shipped, and exported?
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Tech Serve Solutions packs, ships, and exports chemicals in compliance with all relevant international regulations. Specific packaging details are available upon request.
How can I request a sample or quote for 1,6-Diphenyl-1,3,5-hexatriene?
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To request a sample or obtain a quote for 1,6-Diphenyl-1,3,5-hexatriene, please contact the Tech Serve Solutions sales department through our website or by phone.
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