Undecylenic aldehyde
Undecylenic aldehyde (CAS: 112-45-8), with the molecular formula H₂C=CH(CH₂)₈CHO and a molecular weight of 168.28 g/mol, is a C11 aldehyde known for its characteristic odour. It serves as a valuable intermediate and building block in organic synthesis. This compound is primarily utilised in the chemical industry for the creation of fragrances, polymers, and other complex organic molecules, leveraging its reactive aldehyde functional group and terminal double bond.
- IUPAC
- 10-Undecenal
- Synonyms
- 10-Undecenal
Fragrance and Flavour Intermediate
Undecylenic aldehyde is used in the synthesis of various aroma chemicals and fragrance compounds. Its structure can be modified to create molecules with desirable olfactory properties for perfumes, cosmetics, and household products.
Organic Synthesis Building Block
As a bifunctional molecule with both an aldehyde and a terminal alkene, it is a versatile building block for constructing more complex organic structures. It participates in a wide range of organic reactions.
Polymer Chemistry
The terminal double bond allows undecylenic aldehyde to be incorporated into polymer chains or used in polymer modification processes. It can act as a comonomer or a functionalising agent in certain polymer applications.
| Molecular weight | 168.28 |
|---|---|
| Linear formula | H2C=CH(CH2)8CHO |
| Assay | 95% |
| Boiling point | 98-100 °C/3 mmHg(lit.) |
| Density | 0.84 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.4427(lit.) |
| Vapour density | >1 (vs air) |
| Storage temperature | 2-8°C |
| Protective equipment | Eyeshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Flash point | 93 °C / 199.4 °F |
| Transport (UN / ADR) | NA 1993 / PGIII |
| Water hazard class (WGK, DE) | 2 |
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 Undecylenic aldehyde used for?
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Undecylenic aldehyde is primarily used as an intermediate in organic synthesis, particularly for creating fragrance compounds, polymers, and other complex organic molecules due to its aldehyde and terminal double bond functionalities.
What are the CAS number and formula for Undecylenic aldehyde?
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The CAS number for Undecylenic aldehyde is 112-45-8, and its linear formula is H₂C=CH(CH₂)₈CHO.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Undecylenic aldehyde with an assay of 95%. We do not represent this product as USP, BP, or EP grade unless explicitly stated otherwise.
How should Undecylenic aldehyde be handled safely?
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Undecylenic aldehyde is a combustible liquid with a flash point of 93°C (199.4°F). Handle with appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection if ventilation is inadequate. Store at 2-8°C.
How is Undecylenic aldehyde packed, shipped, and exported?
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Undecylenic aldehyde is packed according to industry standards for chemical safety and stability, and is available for global export by Tech Serve Solutions. Specific packaging details will be provided upon request.
How can I request a sample or quote for Undecylenic aldehyde?
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To request a sample or quote for Undecylenic aldehyde, please contact our sales team through the website or by phone, providing your specific requirements.
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