Methyl arachidonate
Methyl arachidonate (CAS: 2566-89-4, C21H34O2) is a methyl ester derived from arachidonic acid, a polyunsaturated omega-6 fatty acid. With a molecular weight of 318.49 g/mol, this compound is primarily utilised in biochemical research and as a laboratory reagent. Its structure features a long carbon chain with multiple double bonds, making it a valuable tool in studies related to lipid metabolism, signal transduction pathways, and enzymatic reactions.
- IUPAC
- Arachidonic acid methyl ester
- Synonyms
- Arachidonic acid methyl esterMethyl (5Z,8Z,11Z,14Z)-eicosatetraenoate

Biochemical Research
Serves as a critical substrate or standard in studies investigating fatty acid metabolism, eicosanoid synthesis, and inflammatory processes. Its polyunsaturated nature makes it relevant for understanding cellular signalling.
Enzyme Assays
Used as a substrate in enzymatic assays to determine the activity of enzymes involved in fatty acid modification, such as cyclooxygenases (COX) and lipoxygenases (LOX).
Lipidomics Studies
A valuable standard for the identification and quantification of fatty acid methyl esters in complex biological samples within lipidomics research.
| Molecular weight | 318.49 |
|---|---|
| Empirical formula | C21H34O2 |
| Assay | ~90% (capillary GC) |
| Storage temperature | −20°C |

Hazard statements
- H252
Precautionary statements
- P235Keep cool
| Protective equipment | Eyeshields, Faceshields, Gloves, half-mask respirator (EU), half-mask respirator (US), multi-purpose combination respirator cartridge (US) |
|---|---|
| Transport (UN / ADR) | UN 3183 4.2/PG 3 |
| 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 Methyl arachidonate used for?
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Methyl arachidonate is used in biochemical research, enzyme assays, and lipidomics studies as a substrate or standard for investigating fatty acid metabolism and related biological processes.
What is the CAS number and formula for Methyl arachidonate?
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The CAS number for Methyl arachidonate is 2566-89-4, and its molecular formula is C21H34O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl arachidonate with an assay of approximately 90% by capillary GC. This product is intended for research and laboratory use and is not represented as USP, BP, or EP grade.
How should Methyl arachidonate be stored and handled?
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Methyl arachidonate should be stored at -20°C. It is classified as flammable solid (H252) and requires careful handling. Personal protective equipment, including eyeshields, faceshields, gloves, and appropriate respiratory protection, should be used. Refer to the Safety Data Sheet for comprehensive handling guidelines.
Is Methyl arachidonate a controlled substance?
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Based on the provided data, Methyl arachidonate (CAS: 2566-89-4) is not indicated as a controlled substance. It is classified as a flammable solid (H252).
How is Methyl arachidonate packed and shipped?
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Methyl arachidonate is packed and shipped according to its hazard classification, UN 3183, Class 4.2, Packing Group III, for safe transportation globally.
How can I request a quote or sample for Methyl arachidonate?
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To request a quote or a sample of Methyl arachidonate, please contact our sales team through the website or by phone. Our representatives will be pleased to assist you.
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