Ethyl 2-formyl-1-cyclopropanecarboxylate, predominantly trans
Ethyl 2-formyl-1-cyclopropanecarboxylate, predominantly trans (CAS: 20417-61-2) is a valuable organic building block with the linear formula HCOC₃H₄CO₂C₂H₅ and a molecular weight of 142.15 g/mol. Characterised by its aldehyde and ester functionalities on a cyclopropane ring, it serves as a versatile intermediate in organic synthesis. This compound is primarily utilised in the development of complex molecules within the chemical and pharmaceutical research sectors.
- Synonyms
- HCOC3H4CO2C2H5Ethyl 2-(formyl)cyclopropanecarboxylate, trans-isomer

Organic Synthesis Intermediate
This cyclopropane derivative functions as a key intermediate for constructing more complex organic molecules. Its dual functionality allows for diverse chemical transformations in multi-step synthesis pathways.
Building Block for Heterocycles
The reactive aldehyde group, alongside the ester and cyclopropane ring, makes it suitable for the synthesis of various heterocyclic compounds. These are often scaffolds in medicinal chemistry.
Research and Development
Primarily employed in laboratory settings for R&D purposes, it aids in the exploration of new chemical entities and reaction methodologies. It is a useful reagent for chemists exploring cyclopropane chemistry.
| Molecular weight | 142.15 |
|---|---|
| Linear formula | HCOC3H4CO2C2H5 |
| Assay | 96% |
| Boiling point | 60-65 °C/0.6 mmHg(lit.) |
| Density | 1.074 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.452(lit.) |
| Storage temperature | 2-8°C |
| Flash point | 84 °C / 183.2 °F |
|---|---|
| Transport (UN / ADR) | NA 1993 / PGIII |
| 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 Ethyl 2-formyl-1-cyclopropanecarboxylate, predominantly trans used for?
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Ethyl 2-formyl-1-cyclopropanecarboxylate, predominantly trans is used as an intermediate and building block in organic synthesis, particularly in research and development settings for creating complex molecules and heterocyclic compounds.
What is the CAS number and formula for this compound?
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The CAS number is 20417-61-2 and the linear formula is HCOC₃H₄CO₂C₂H₅.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical with an assay of 96%. This is a technical grade for research use; TSS does not represent it as USP, BP, or EP.
How should Ethyl 2-formyl-1-cyclopropanecarboxylate, predominantly trans be handled and stored?
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This compound has a flash point of 84°C (183.2°F) and is classified under NA 1993 / PGIII. It should be stored at 2-8°C. Consult the Safety Data Sheet for comprehensive handling and safety precautions.
Can Tech Serve Solutions export this chemical internationally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals and can facilitate international shipments. Please contact us for export details.
How can I request a quote or sample?
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To request a quote or a sample, please use the contact form on our website or contact our sales department directly. We will respond promptly to your inquiry.
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