Diethyl trans-1,2-cyclopropanedicarboxylate
Diethyl trans-1,2-cyclopropanedicarboxylate (CAS: 3999-55-1), with the molecular formula C3H4(CO2C2H5)2 and a molecular weight of 186.21 g/mol, is a cyclopropane derivative featuring two ethyl ester groups. This organic building block serves as a versatile intermediate in chemical synthesis, particularly in the preparation of more complex organic molecules. Its unique cyclopropane ring structure makes it valuable for introducing strained ring systems into target compounds.
- Synonyms
- Diethyl 1,2-cyclopropanedicarboxylate

Organic Synthesis Intermediate
Diethyl trans-1,2-cyclopropanedicarboxylate is a key building block for constructing complex organic molecules. Its strained cyclopropane ring and ester functionalities allow for diverse chemical transformations.
Pharmaceutical Research
This compound can be utilised in the synthesis of novel pharmaceutical intermediates and active pharmaceutical ingredients (APIs). The cyclopropane motif is present in various biologically active molecules.
Material Science
It may be employed in the development of specialty polymers or functional materials where the incorporation of cyclopropane units can impart unique properties.
| Molecular weight | 186.21 |
|---|---|
| Linear formula | C3H4(CO2C2H5)2 |
| Assay | 97% |
| Boiling point | 70-75 °C/1 mmHg(lit.) |
| Density | 1.061 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.441(lit.) |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 98 °C / 208.4 °F |
| 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 Diethyl trans-1,2-cyclopropanedicarboxylate used for?
+
Diethyl trans-1,2-cyclopropanedicarboxylate is primarily used as an intermediate in organic synthesis for creating complex molecules, including potential pharmaceutical and material science applications.
What is the CAS number and formula for Diethyl trans-1,2-cyclopropanedicarboxylate?
+
The CAS number is 3999-55-1 and the linear formula is C3H4(CO2C2H5)2.
What grade and purity does Tech Serve Solutions supply?
+
Tech Serve Solutions supplies Diethyl trans-1,2-cyclopropanedicarboxylate with an assay of 97%. This is a technical grade material and TSS does not represent it as USP, BP, EP or other pharmacopoeia grades.
How should Diethyl trans-1,2-cyclopropanedicarboxylate be handled?
+
Handling requires appropriate personal protective equipment, including eyeshields and gloves, to prevent contact. Refer to the Safety Data Sheet for comprehensive handling and safety information.
How is Diethyl trans-1,2-cyclopropanedicarboxylate shipped and exported?
+
Tech Serve Solutions expertly handles the packing, shipping, and global export of Diethyl trans-1,2-cyclopropanedicarboxylate, adhering to all relevant regulations for chemical transport.
How can I request a quote or sample?
+
To request a quote or sample of Diethyl trans-1,2-cyclopropanedicarboxylate, please contact our sales team via the website or by phone.
▶ Related products

1-(2-Fluorobenzyl)piperazine
C11H15FN2
Chemical Synthesis
1-(2-Fluorophenyl)biguanide hydrochloride
Chemical Synthesis

1-(2-Fluorophenyl)cyclopropanecarboxylic acid
C10H9FO2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine
C10H13FN2
Chemical Synthesis
1-(2-Fluorophenyl)piperazine monohydrochloride
C10H13FN2 · HCl
Chemical Synthesis
1-(2-Furoyl)-1H-benzotriazole
C11H7N3O2
Chemical Synthesis
1-(2-Furoyl)piperazine
C9H12N2O2
Chemical Synthesis
1-(2-Hydroxy-5-methylphenyl)-3-phenyl-1,3-propanedione
Chemical Synthesis
▶ Explore more

3-Methyl-1,5-di-p-tolyl-1,4-pentazadiene
Chemical Synthesis

3-Methyl-1,5-pentanediol
Chemical Synthesis

3-Methyl-1-(2-methylphenyl)-1H-pyrazol-5-amine
C11H13N3
Chemical Synthesis
3-Methyl-1-(3′-sulfoamidophenyl)-5-pyrazolone
C10H11N3O3S
Chemical Synthesis