Diethyl diethylmalonate
Diethyl diethylmalonate (CAS: 77-25-8), with the molecular formula C10H18O4 and a molecular weight of 216.27 g/mol, is a versatile ester compound. This organic building block is primarily utilised in chemical synthesis as a key intermediate. Its ester functionality and branched carbon chain make it a valuable component in the construction of more complex organic molecules, particularly within fine chemical and pharmaceutical research and development.
- IUPAC
- Diethyl 3,3-pentanedicarboxylate
- Synonyms
- Diethyl 3,3-pentanedicarboxylate

Organic Synthesis Intermediate
Diethyl diethylmalonate serves as a crucial building block in multi-step organic syntheses. It is employed to introduce specific carbon frameworks and functional groups into target molecules.
Pharmaceutical Research
In pharmaceutical R&D, this ester can be a precursor for the synthesis of active pharmaceutical ingredients (APIs) or key intermediates. Its structure lends itself to the development of novel therapeutic agents.
Fine Chemical Manufacturing
This compound finds application in the manufacturing of various fine chemicals. It is used in reactions requiring a malonate ester derivative with ethyl substituents.
| Molecular weight | 216.27 |
|---|---|
| Linear formula | (C2H5)2C(CO2C2H5)2 |
| Assay | 98% |
| Boiling point | 228-230 °C(lit.) |
| Density | 0.99 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.423(lit.) |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 94 °C / 201.2 °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 diethylmalonate (CAS 77-25-8) used for?
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Diethyl diethylmalonate (CAS: 77-25-8) is primarily used as a versatile building block in organic synthesis, particularly in the fine chemical and pharmaceutical industries for the construction of more complex molecules.
What are the CAS number and molecular formula for Diethyl diethylmalonate?
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The CAS number for Diethyl diethylmalonate is 77-25-8, and its molecular formula is C10H18O4.
What grade and purity does Tech Serve Solutions supply for Diethyl diethylmalonate?
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Tech Serve Solutions supplies Diethyl diethylmalonate with an assay of 98%. This product is typically considered a technical or research grade and is not represented as USP, BP, or EP grade.
How should Diethyl diethylmalonate be handled safely?
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Diethyl diethylmalonate requires careful handling. It is combustible with a flash point of 94 °C (201.2 °F) and should be handled with appropriate personal protective equipment, including eyeshields and gloves, in well-ventilated areas.
How is Diethyl diethylmalonate packed and shipped?
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Diethyl diethylmalonate is packed according to industry standards to ensure safe transport. Tech Serve Solutions exports fine chemicals globally, adhering to all necessary shipping regulations.
How can I request a quote or sample of Diethyl diethylmalonate?
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To request a quote or a sample of Diethyl diethylmalonate, please contact our sales department through the website or by phone. Our team will assist you with your inquiry.
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