Cyclohexylallene
Cyclohexylallene (CAS: 5664-17-5), with the empirical formula C9H14 and a molecular weight of 122.21 g/mol, is an organic compound featuring an allene functional group attached to a cyclohexane ring. As a versatile building block, it is primarily utilised in organic synthesis and chemical research. Its reactive nature makes it a valuable intermediate for constructing more complex molecular architectures. Available from Tech Serve Solutions with an assay of 97%.
- IUPAC
- (1,2-Propadienyl)cyclohexane
- Synonyms
- (1,2-Propadienyl)cyclohexane

Organic Synthesis Intermediate
Cyclohexylallene serves as a reactive intermediate in the synthesis of various organic molecules. Its allene functionality allows for diverse chemical transformations, enabling the construction of complex carbon skeletons.
Research and Development
This compound is a valuable reagent for research laboratories exploring novel synthetic pathways and developing new chemical entities. Its specific structure can be leveraged in academic and industrial R&D settings.
Building Block for Complex Molecules
Utilised as a fundamental building block, cyclohexylallene facilitates the creation of more elaborate chemical structures. It is particularly useful in multi-step syntheses where precise functional group manipulation is required.
| Molecular weight | 122.21 |
|---|---|
| Empirical formula | C9H14 |
| Assay | 97% |
| Boiling point | 56-57 °C/15 mmHg |
| Density | 0.839 g/mL at 25 °C |
| Refractive index | n20/D 1.483 |



Hazard statements
- H226Flammable liquid and vapour
- H319Causes serious eye irritation
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P273Avoid release to the environment
- P305IF IN EYES
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 37 °C / 98.6 °F |
| Transport (UN / ADR) | UN 3295C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | N |
| Risk statements (R) | 10-50/53 |
| Safety statements (S) | 60-61 |
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 Cyclohexylallene used for?
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Cyclohexylallene is primarily used as a reactive intermediate in organic synthesis and as a building block for constructing complex molecules in research and development.
What is the CAS number and formula for Cyclohexylallene?
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The CAS number for Cyclohexylallene is 5664-17-5, and its empirical formula is C9H14.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Cyclohexylallene with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should Cyclohexylallene be handled safely?
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Cyclohexylallene is flammable and an irritant, with potential environmental hazards. Handle in a well-ventilated area, away from ignition sources, wearing appropriate personal protective equipment including eyeshields, gloves, and respiratory protection as specified in the safety data sheet. Avoid release into the environment.
How is Cyclohexylallene packed and shipped?
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Cyclohexylallene is packed according to safety regulations for hazardous materials, including flammable liquids. It is exported globally by Tech Serve Solutions, adhering to international shipping standards for compounds classified under UN 3295C, Packing Group III.
How can I request a sample or quote for Cyclohexylallene?
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To request a sample or a quote for Cyclohexylallene, please contact our sales team via the website or by calling us directly. Please specify the quantity and your delivery location.
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