trans-9,10-Epoxystearic acid
trans-9,10-Epoxystearic acid (CAS 2443-39-2), also known as trans-9,10-Epoxyoctadecanoic acid, is a valuable C18 epoxy fatty acid with a molecular weight of 298.46 g/mol. This compound serves as a key intermediate and building block in various chemical syntheses, particularly within the fields of polymer chemistry and organic synthesis. Its epoxide functionality allows for diverse reactions, making it a versatile reagent for creating complex molecular structures.
- IUPAC
- trans-9,10-Epoxyoctadecanoic acid
- Synonyms
- trans-9,10-Epoxyoctadecanoic acid

Organic Synthesis Intermediate
Utilised as a versatile intermediate in complex organic syntheses due to its reactive epoxide group, enabling the formation of novel compounds and derivatives.
Polymer Chemistry
Acts as a monomer or modifier in the development of specialised polymers, potentially imparting unique properties such as flexibility or adhesion.
Research and Development
A fundamental reagent in biochemical and lipid research, facilitating studies into fatty acid metabolism and the synthesis of biologically relevant molecules.
| Molecular weight | 298.46 |
|---|---|
| Empirical formula | C18H34O3 |
| Assay | ~99% (capillary GC) |
| Storage temperature | −20°C |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 trans-9,10-Epoxystearic acid used for?
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trans-9,10-Epoxystearic acid is primarily used as an intermediate in organic synthesis and polymer chemistry, and in biochemical and lipid research.
What is the CAS number and molecular formula for trans-9,10-Epoxystearic acid?
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The CAS number is 2443-39-2, and the empirical formula is C18H34O3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies trans-9,10-Epoxystearic acid with an assay of approximately 99% (capillary GC). This is a technical/research grade; TSS does not represent it as USP, BP, or EP grade.
How should trans-9,10-Epoxystearic acid be handled and stored?
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Handle with appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or P1 (EN143) respirator filter may be necessary. Store at -20°C.
Is trans-9,10-Epoxystearic acid a controlled substance?
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Based on the provided data, there is no indication that trans-9,10-Epoxystearic acid is a controlled substance.
How are products from Tech Serve Solutions packed, shipped, and exported?
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Tech Serve Solutions specialises in global supply and export of fine chemicals, pharmaceutical intermediates, and laboratory reagents, adhering to international shipping and packaging standards.
How can I request a sample or quote for trans-9,10-Epoxystearic acid?
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Please contact the TSS sales team directly to request a sample or a quotation for trans-9,10-Epoxystearic acid.
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