Methyl 4-pentenoate
Methyl 4-pentenoate (CAS: 818-57-5), with the molecular formula C6H10O2, is a valuable organic ester. Characterised by its unsaturated nature due to the terminal double bond, it serves as a versatile building block in chemical synthesis. This compound is primarily utilised in the development of more complex molecules within organic chemistry research and industrial applications.
- IUPAC
- 4-Pentenoic acid methyl ester,Allylacetic acid methyl ester,Methyl allylacetate

Organic Synthesis Intermediate
Methyl 4-pentenoate acts as a key intermediate in the synthesis of various organic compounds. Its reactive alkene and ester functionalities allow for diverse chemical transformations, making it useful in the construction of carbon chains and functional group manipulation.
Building Block for Specialty Chemicals
This ester serves as a fundamental building block for the creation of specialty chemicals. Researchers and chemists leverage its structure to access complex molecular architectures relevant to pharmaceuticals, agrochemicals, and materials science.
Research and Development
In R&D settings, Methyl 4-pentenoate is employed for exploring new synthetic methodologies and developing novel compounds. Its availability as a reagent supports innovation in diverse fields of chemical science.
| Molecular weight | 114.14 |
|---|---|
| Empirical formula | C6H10O2 |
| Assay | ≥95.0% (GC) |
| Refractive index | n20/D 1.415n20/D 1.415 |


Hazard statements
- H226Flammable liquid and vapour
- H319Causes serious eye irritation
Precautionary statements
- P305IF IN EYES
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 29 °C / 84.2 °F |
| Transport (UN / ADR) | UN 3272 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 10-36 |
| Safety statements (S) | 26 |
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 4-pentenoate used for?
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Methyl 4-pentenoate is primarily used as an intermediate and building block in organic synthesis for the development of more complex molecules, particularly in research and development settings for specialty chemicals.
What is the CAS number and formula for Methyl 4-pentenoate?
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The CAS number for Methyl 4-pentenoate is 818-57-5, and its molecular formula is C6H10O2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Methyl 4-pentenoate with a minimum purity of 95.0% as determined by GC. This product is not represented as USP, BP, or EP grade.
What are the safety and handling considerations for Methyl 4-pentenoate?
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Methyl 4-pentenoate is a flammable liquid and causes serious eye irritation (H226, H319). It requires careful handling, including the use of appropriate personal protective equipment such as eyeshields, gloves, and suitable respiratory protection. Store in a well-ventilated area away from ignition sources.
How is Methyl 4-pentenoate packed, shipped, and exported?
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Methyl 4-pentenoate is packed and shipped according to international regulations for hazardous materials, including UN 3272. Tech Serve Solutions is experienced in exporting chemicals globally.
How can I request a sample or quote for Methyl 4-pentenoate?
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To request a sample or a quote for Methyl 4-pentenoate, please contact our sales team through the website or by phone, providing your specific requirements.
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