Methyl trans-3-pentenoate
Methyl trans-3-pentenoate (CAS: 20515-19-9) is an organic compound with the linear formula CH3CH=CHCH2CO2CH3 and a molecular weight of 114.14 g/mol. As a member of the ester and carbonyl compound families, this versatile molecule serves as a valuable building block in organic synthesis. Its applications are primarily within research and development settings, contributing to the creation of more complex chemical structures.

Organic Synthesis Intermediate
Methyl trans-3-pentenoate is frequently employed as an intermediate in the synthesis of fine chemicals and novel organic compounds. Its functional groups allow for various chemical transformations, making it a useful starting material for multi-step synthetic pathways.
Research and Development
This ester is utilised in laboratory research to explore new chemical reactions and develop innovative materials. Its specific structure lends itself to studies in areas such as polymer chemistry and medicinal chemistry research.
Building Block for Complex Molecules
The compound acts as a fundamental building block for constructing more elaborate molecular architectures. Researchers leverage its unique carbon chain and ester functionality to introduce specific structural motifs into target molecules.
| Molecular weight | 114.14 |
|---|---|
| Linear formula | CH3CH=CHCH2CO2CH3 |
| Assay | 90% |
| Boiling point | 55-56 °C/20 mmHg(lit.) |
| Density | 0.93 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.421(lit.) |

Hazard statements
- H226Flammable liquid and vapour
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 24 °C / 75.2 °F |
| Transport (UN / ADR) | UN 3272 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Risk statements (R) | 10 |
| Safety statements (S) | 16 |
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 trans-3-pentenoate used for?
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Methyl trans-3-pentenoate is primarily used as a building block in organic synthesis and for research and development purposes in chemical laboratories.
What is the CAS number and formula for Methyl trans-3-pentenoate?
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The CAS number is 20515-19-9, and its linear formula is CH3CH=CHCH2CO2CH3.
What grade and purity does Tech Serve Solutions supply for Methyl trans-3-pentenoate?
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Tech Serve Solutions supplies Methyl trans-3-pentenoate with an assay of 90%. This product is intended for research and laboratory use and is not represented as USP, BP, EP, or other pharmacopoeia grades.
What are the safety and handling considerations for Methyl trans-3-pentenoate?
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Methyl trans-3-pentenoate is a flammable liquid and vapour (H226), requiring handling with appropriate safety measures. It has a flash point of 24 °C. Users should consult the safety data sheet and wear appropriate personal protective equipment, including eyeshields, gloves, and respiratory protection.
How is Methyl trans-3-pentenoate packed, shipped, and exported?
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Methyl trans-3-pentenoate is packed in compliance with relevant regulations for the safe transport of chemicals, including UN 3272. Tech Serve Solutions, as a specialist global supplier, exports this chemical worldwide.
How can I request a sample or quote for Methyl trans-3-pentenoate?
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To request a sample or a quote for Methyl trans-3-pentenoate, please contact the Tech Serve Solutions sales team through our website or by phone.
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