Molekula
Diethyl butylmalonate
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Diethyl butylmalonate is an organic ester widely used as a key intermediate in pharmaceutical synthesis, agrochemical production, and the manufacture of fine chemicals. It serves as a building block for complex molecules due to its malonate functionality: as an already mono-alkylated malonate, it is used in the synthesis of phenylbutazone and in malonic ester synthesis of substituted carboxylic acids. This chemical has a CAS number of 133-08-4, with the molecular formula CH3(CH2)3CH(CO2C2H5)2 and a molecular weight of 216.27. It is stored at ambient conditions and carries a signal word of "Warning" for safety classification. Molekula supplies Diethyl butylmalonate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | Colourless transparent liquid |
| Assay | 133-08-4 |
| Ethanol | ≤0.20% |
| Moisture | ≤0.10% |
| Diethyl malonate | ≤0.2% |
| Diethyl dibutylmalonate | ≤0.1% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 94 °C |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 90037080 |
| CAS Number | 133-08-4 |
| IUPAC Name | diethyl 2-butylpropanedioate |
| EC Number | 205-089-1 |
| Molecular Formula | CH3(CH2)3CH(CO2C2H5)2 |
| Molecular Weight | 216.27 |
| Exact Mass | 216.1362 |
| SMILES | CCCCC(C(=O)OCC)C(=O)OCC |
| InChIKey | RPNFNBGRHCUORR-UHFFFAOYSA-N |
| InChI | InChI=1S/C11H20O4/c1-4-7-8-9(10(12)14-5-2)11(13)15-6-3/h9H,4-8H2,1-3H3 |
| PubChem CID | 67244 |
| REACH Code | Y113 |
| HTS Code | 29171970 |
| Tariff Code | 2917198090 |
Safety & GHS
-
Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P302+352 IF ON SKIN: Wash with soap and water
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Butylmalonic acid diethyl ester
- Butylpropanedioic acid diethyl ester
- DIETHYL .ALPHA.-BUTYLMALONATE
- Diethyl 2-butylmalonate
- Diethyl n-butylmalonate
- Ethyl butylmalonate
- Malonic acid, butyl-, diethyl ester
- n-Butylmalonic acid diethyl ester
- pentane-1,1-dicarboxylic acid
- Propanedioic acid, butyl-, diethyl ester
Frequently asked questions
What is diethyl butylmalonate commonly used for in chemical synthesis?
Diethyl butylmalonate is primarily used as a building block in organic synthesis, particularly for preparing substituted carboxylic acids, pharmaceutical intermediates, and agrochemicals via malonic ester synthesis.
What is the chemical formula and molecular weight of diethyl butylmalonate?
The chemical formula is **CH₃(CH₂)₃CH(CO₂C₂H₅)₂**, and the molecular weight is **216.27 g/mol**.
How should diethyl butylmalonate be stored?
Store in a tightly sealed container at **ambient temperature**, away from moisture and strong oxidizing agents.
What purity grades of diethyl butylmalonate does Molekula supply?
Molekula supplies **technical grade** diethyl butylmalonate, suitable for most industrial and research applications.
Can Molekula supply diethyl butylmalonate in bulk quantities?
Yes, Molekula can provide diethyl butylmalonate in **bulk quantities**—please contact us for specific packaging options and minimum order quantities.
What documentation is provided with an order of diethyl butylmalonate?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a product specification sheet.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.