1,2-Epoxy-9-decene
1,2-Epoxy-9-decene (CAS: 85721-25-1) is a valuable organic building block with the molecular formula C10H18O and a molecular weight of 154.25 g/mol. This epoxide derivative, also known as (7-Octenyl)oxirane, is primarily utilised in chemical synthesis for its reactive epoxy group and terminal alkene functionality. It serves as a versatile intermediate in the preparation of more complex organic molecules.
- IUPAC
- (7-Octenyl)oxirane
- Synonyms
- C10H18O(7-Octenyl)oxirane

Organic Synthesis Intermediate
1,2-Epoxy-9-decene is employed as a key intermediate in multi-step organic syntheses. Its dual functionality allows for diverse reaction pathways, facilitating the construction of complex molecular architectures.
Polymer Chemistry
The terminal alkene in 1,2-Epoxy-9-decene can be utilised in polymerisation reactions or as a site for post-polymerisation modification, leading to functionalised polymers.
Epoxide Ring-Opening Reactions
The epoxide ring is susceptible to nucleophilic attack, enabling the introduction of various functional groups through ring-opening reactions, a fundamental transformation in organic chemistry.
| Molecular weight | 154.25 |
|---|---|
| Empirical formula | C10H18O |
| Assay | 96% |
| Density | 0.842 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.442(lit.) |


Hazard statements
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 78 °C / 172.4 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 37/38-41 |
| Safety statements (S) | 26-36 |
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 1,2-Epoxy-9-decene used for?
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1,2-Epoxy-9-decene is used as a versatile intermediate in organic synthesis, particularly in the preparation of complex organic molecules and functionalised polymers due to its epoxy and alkene functionalities.
What is the CAS number and molecular formula for 1,2-Epoxy-9-decene?
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The CAS number for 1,2-Epoxy-9-decene is 85721-25-1, and its molecular formula is C10H18O.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1,2-Epoxy-9-decene with a minimum assay of 96%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
What are the safety considerations when handling 1,2-Epoxy-9-decene?
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1,2-Epoxy-9-decene is classified as corrosive and an irritant. It causes skin irritation (H315), serious eye damage (H318), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including eyeshields and chemical-resistant gloves, must be worn. Ensure adequate ventilation or use a suitable respirator.
How is 1,2-Epoxy-9-decene packaged, shipped, and exported?
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1,2-Epoxy-9-decene is carefully packaged to maintain its integrity during transit. Tech Serve Solutions is experienced in exporting fine chemicals globally, adhering to all relevant shipping regulations.
How can I request a sample or quote for 1,2-Epoxy-9-decene?
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To request a sample or obtain a quote for 1,2-Epoxy-9-decene, please contact our sales team through the website or by phone, providing your specific requirements.
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