Dimethyl isobutylmalonate
Dimethyl isobutylmalonate (CAS 39520-24-6) is an organic compound with the linear formula (CH3)2CHCH2CH(CO2CH3)2 and a molecular weight of 188.22 g/mol. This ester is a valuable building block utilised in chemical synthesis. It is commonly employed as an intermediate in the production of various organic molecules, particularly within the pharmaceutical and fine chemical industries, owing to its reactive malonate ester functionality.
- IUPAC
- Dimethyl (2-methylpropyl)malonate
- Synonyms
- Dimethyl (2-methylpropyl)malonate

Organic Synthesis Intermediate
Dimethyl isobutylmalonate serves as a versatile intermediate in organic synthesis. Its malonate ester structure allows for facile alkylation and subsequent transformations, making it useful for constructing more complex molecular architectures.
Pharmaceutical Building Block
This compound is employed in the synthesis of pharmaceutical intermediates and active pharmaceutical ingredients (APIs). Its specific structure can be incorporated into drug candidates requiring a branched alkyl malonate fragment.
Fine Chemical Production
It finds application in the broader fine chemical industry for the development and manufacture of specialised chemical products where precise molecular construction is required.
| Molecular weight | 188.22 |
|---|---|
| Linear formula | (CH3)2CHCH2CH(CO2CH3)2 |
| Assay | 97% |
| Boiling point | 213 °C(lit.) |
| Density | 1.012 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.424(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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 97 °C / 206.6 °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 Dimethyl isobutylmalonate used for?
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Dimethyl isobutylmalonate is primarily used as a building block and intermediate in organic synthesis, particularly in the pharmaceutical and fine chemical industries for constructing complex molecules.
What is the CAS number and formula for Dimethyl isobutylmalonate?
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The CAS number is 39520-24-6 and its linear formula is (CH3)2CHCH2CH(CO2CH3)2.
What grade and purity does Tech Serve Solutions supply for Dimethyl isobutylmalonate?
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Tech Serve Solutions supplies Dimethyl isobutylmalonate with a minimum purity of 97%. This product is offered for research and laboratory purposes and is not represented as USP, BP, EP, or any other pharmacopoeia grade.
How should Dimethyl isobutylmalonate be handled safely?
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Dimethyl isobutylmalonate is classified as a Warning substance, with hazards including skin irritation (H315), serious eye irritation (H319), and respiratory tract irritation (H335). Always wear appropriate personal protective equipment, such as eyeshields and gloves, and handle in a well-ventilated area or fume hood.
How is Dimethyl isobutylmalonate typically packed and shipped?
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Tech Serve Solutions exports chemicals globally, adhering to all relevant shipping regulations. Specific packaging details are confirmed at the time of order, ensuring safe and compliant transit.
How can I request a quote or sample of Dimethyl isobutylmalonate?
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To request a quote or a sample, please contact our sales team through the website or by phone. Please specify the required quantity and your delivery location.
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