1,3-Cycloheptadiene
1,3-Cycloheptadiene (CAS: 4054-38-0), with the molecular formula C7H10 and a molecular weight of 94.15 g/mol, is an unsaturated cyclic hydrocarbon. This alkene serves as a versatile building block in organic synthesis. It is primarily utilised in chemical research and the development of novel organic compounds, offering a unique cyclic structure for further chemical transformations.
- Synonyms
- C7H10

Organic Synthesis
1,3-Cycloheptadiene functions as a fundamental building block in organic chemistry. Its reactive double bonds allow for a range of addition and cycloaddition reactions, enabling the construction of more complex cyclic systems.
Research and Development
This compound is employed in academic and industrial research settings for exploring new synthetic routes and developing novel chemical entities. It provides a scaffold for investigating structure-activity relationships.
Material Science Precursor
As a cyclic alkene, 1,3-Cycloheptadiene can be explored as a potential monomer or precursor in the development of specialised polymers and materials with unique properties.
| Molecular weight | 94.15 |
|---|---|
| Empirical formula | C7H10 |
| Assay | 95% |
| Boiling point | 120-121 °C(lit.) |
| Density | 0.868 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.498(lit.) |
| Storage temperature | 2-8°C |
| Impurities tested | ≤3% cycloheptatriene |


Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P301IF SWALLOWED
- P331Do NOT induce vomiting
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 11 °C / 51.8 °F |
| Transport (UN / ADR) | UN 3295BF 3 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,Xn |
| Risk statements (R) | 11-65 |
| Safety statements (S) | 16-23-24/25-62 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 1,3-Cycloheptadiene used for?
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1,3-Cycloheptadiene is primarily used as a building block in organic synthesis and in chemical research and development for creating novel organic compounds.
What is the CAS number and formula for 1,3-Cycloheptadiene?
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The CAS number for 1,3-Cycloheptadiene is 4054-38-0, and its molecular formula is C7H10.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,3-Cycloheptadiene with an assay of 95%. This product is not classified as USP, BP, or EP grade.
How should 1,3-Cycloheptadiene be handled safely?
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1,3-Cycloheptadiene is a flammable liquid and vapour (H225) and may be fatal if swallowed and enters airways (H304). Handle with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection, in a well-ventilated area away from ignition sources. Store at 2-8°C.
Is 1,3-Cycloheptadiene a controlled substance?
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The provided data does not indicate that 1,3-Cycloheptadiene is a controlled substance.
How is 1,3-Cycloheptadiene packed and exported?
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1,3-Cycloheptadiene is shipped as UN 3295 BF 3 / PG II. Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals.
How can I request a quote or sample for 1,3-Cycloheptadiene?
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Please contact Tech Serve Solutions directly through our website or by phone to request a quote or a sample of 1,3-Cycloheptadiene.
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