cis-Stilbene
cis-Stilbene (CAS: 645-49-8), with the molecular formula C14H12 and a molecular weight of 180.25 g/mol, is a specific isomer of stilbene. This organic compound is recognised for its utility as a chemical intermediate and building block in organic synthesis. It is commonly employed in research laboratories and industrial processes requiring the introduction of the stilbene moiety into more complex molecular structures. Available from Tech Serve Solutions in technical grade.
- IUPAC
- cis-1,2-Diphenylethylene,Isostilbene
- Synonyms
- Isostilbenecis-1,2-Diphenylethylene

Organic Synthesis Intermediate
cis-Stilbene serves as a valuable intermediate in the synthesis of various organic compounds. Its specific stereochemistry allows for controlled reactions in the development of complex molecules.
Research and Development
This compound is utilized in academic and industrial research settings for exploring new synthetic pathways and developing novel materials or pharmaceuticals.
Chemical Building Block
As a foundational building block, cis-stilbene can be incorporated into larger molecular architectures, contributing specific structural features to target compounds.
| Molecular weight | 180.25 |
|---|---|
| Linear formula | C6H5CH=CHC6H5 |
| Assay | 96% |
| Grade | technical |
| Boiling point | 82-84 °C/0.4 mmHg(lit.) |
| Density | 1.011 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.622(lit.) |
| Storage temperature | 2-8°C |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 110 °C / 230 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Gene Information | human ... ESR1(2099)rat ... Esr1(24890) |
|---|
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 cis-Stilbene used for?
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cis-Stilbene is primarily used as an intermediate and building block in organic synthesis and for research and development purposes.
What are the CAS number and molecular formula for cis-Stilbene?
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The CAS number for cis-Stilbene is 645-49-8, and its molecular formula is C14H12.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies cis-Stilbene in technical grade with an assay of 96%. We do not represent this product as USP, BP, or EP grade.
How should cis-Stilbene be handled safely?
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cis-Stilbene is classified as a Warning substance, causing skin and eye irritation (H315, H319). Handle with appropriate personal protective equipment including eyeshields, gloves, and a suitable respirator. Avoid contact with skin and eyes, and ensure good ventilation. Store at 2-8°C.
How is cis-Stilbene packed, shipped, and exported?
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cis-Stilbene is carefully packed according to industry standards for safe transport and is available for export globally by Tech Serve Solutions.
How can I request a sample or quote for cis-Stilbene?
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To request a sample or a quotation for cis-Stilbene, please contact our sales team through the website or via email.
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