Diethylmalonic acid
Diethylmalonic acid (CAS: 510-20-3) is an organic compound with the molecular formula (C2H5)2C(COOH)2 and a molecular weight of 160.17 g/mol. This dicarboxylic acid is characterised by two ethyl groups attached to the alpha-carbon. It serves as a valuable building block in organic synthesis, finding utility as a monomer in polymer science and materials science applications. Its specific structure allows for targeted incorporation into polymer chains.

Monomer for Polymer Synthesis
Diethylmalonic acid can be utilised as a monomer in the creation of various polymers. Its dicarboxylic acid functionality allows for polymerisation reactions, contributing specific properties to the resulting polymer chains.
Materials Science Intermediate
This compound acts as an intermediate in materials science research and development. It can be incorporated into novel materials, leveraging its unique chemical structure to impart desired characteristics.
Organic Synthesis Building Block
In organic chemistry, Diethylmalonic acid serves as a versatile building block for synthesising more complex molecules. Its reactivity is well-suited for various synthetic transformations.
| Molecular weight | 160.17 |
|---|---|
| Linear formula | (C2H5)2C(COOH)2 |
| Assay | 98% |
| Melting point | 129-131 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Flash point | 61 °C / 141.8 °F |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
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 Diethylmalonic acid used for?
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Diethylmalonic acid is primarily used as a monomer in polymer science and materials science, and as a building block in organic synthesis.
What is the CAS number and chemical formula for Diethylmalonic acid?
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The CAS number for Diethylmalonic acid is 510-20-3, and its linear chemical formula is (C2H5)2C(COOH)2.
What grade and purity does Tech Serve Solutions supply for Diethylmalonic acid?
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Tech Serve Solutions supplies Diethylmalonic acid with an assay of 98%. This product is supplied for research and industrial use and is not represented as USP, BP, or EP grade.
How should Diethylmalonic acid be handled safely?
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Diethylmalonic acid is classified with the GHS07 symbol and a Warning signal word. It carries hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Recommended personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Always handle in a well-ventilated area and avoid breathing dust.
Does TSS export Diethylmalonic acid globally?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including Diethylmalonic acid.
How can I request a sample or quote for Diethylmalonic acid?
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To request a sample or a quote for Diethylmalonic acid, please contact our sales team through the website or by phone. Please specify the quantity required.
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