Diethyl butylmalonate
Diethyl butylmalonate (CAS: 133-08-4), with the chemical formula CH3(CH2)3CH(CO2C2H5)2, is a malonic ester derivative. This compound serves as a valuable intermediate in organic synthesis, particularly in the construction of more complex molecules. Its ester functionalities allow for versatile reactions, making it a useful building block in various chemical processes.

Organic Synthesis Intermediate
Diethyl butylmalonate is employed as a key building block in the synthesis of diverse organic compounds. Its malonate structure facilitates carbon-carbon bond formation through alkylation and subsequent decarboxylation reactions.
Pharmaceutical Intermediates
This ester can be utilised in the multi-step synthesis pathways for pharmaceutical active ingredients. Its structure allows for incorporation into complex molecular frameworks relevant to drug discovery and development.
Fine Chemical Production
As a functionalised ester, Diethyl butylmalonate finds application in the broader fine chemical industry for creating specialised molecules with specific properties.
| Molecular weight | 216.27 |
|---|---|
| Linear formula | CH3(CH2)3CH(CO2C2H5)2 |
| Assay | 99% |
| Boiling point | 235-240 °C(lit.) |
| Density | 0.983 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.422(lit.) |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 94 °C / 201.2 °F |
| Water hazard class (WGK, DE) | 1 |
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 butylmalonate used for?
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Diethyl butylmalonate is primarily used as an intermediate in organic synthesis and in the production of pharmaceutical and fine chemicals.
What is the CAS number and formula for Diethyl butylmalonate?
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The CAS number for Diethyl butylmalonate is 133-08-4 and its chemical formula is CH3(CH2)3CH(CO2C2H5)2.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Diethyl butylmalonate with a minimum assay of 99%. This product is supplied for research and development or industrial use, and is not represented as USP, BP, EP, or food grade.
How should Diethyl butylmalonate be handled?
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Diethyl butylmalonate is a combustible liquid with a flash point of approximately 94 °C (201.2 °F). Handle with appropriate personal protective equipment, including eyeshields and gloves, in a well-ventilated area.
Is Diethyl butylmalonate a controlled substance?
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There is no indication in the provided data that Diethyl butylmalonate is a controlled substance.
How is Diethyl butylmalonate packed and shipped?
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Diethyl butylmalonate is carefully packed to ensure safe transit and is exported globally by Tech Serve Solutions.
How can I request a quote or sample for Diethyl butylmalonate?
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Please contact Tech Serve Solutions directly to request a quotation or to arrange for a sample of Diethyl butylmalonate.
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