Molekula
Diethyl ethoxymethylenemalonate
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 ethoxymethylenemalonate (DEEM) is an organic ester widely used as a key intermediate in pharmaceutical synthesis, particularly in the Gould-Jacobs synthesis of 4-quinolones for quinolone antibacterials and in the preparation of pyrimidines, pyrazoles and other heterocycles. It functions as a versatile reagent in condensation reactions and organic transformations. This compound has a CAS number of 87-13-8, a molecular formula of C10H16O5, and a molecular weight of 216.23. It should be stored at ambient temperatures and handled with caution, as it carries a "Danger" signal word. Molekula supplies Diethyl ethoxymethylenemalonate 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
-
100 g — £32.20 per pack ex VAT · £38.64 inc. VAT
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 to light yellow liquid |
| Identification | Conforms to reference |
| Purity (NMR) | ≥ 98.0 % |
| NMR | Consistent with Structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 144 °C |
| Transport Class | 9 |
| Packing Group | III |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 16946616 |
| CAS Number | 87-13-8 |
| IUPAC Name | diethyl 2-(ethoxymethylidene)propanedioate |
| EC Number | 201-725-7 |
| Molecular Formula | C10H16O5 |
| Molecular Weight | 216.23 |
| Exact Mass | 216.0998 |
| SMILES | CCOC=C(C(=O)OCC)C(=O)OCC |
| InChIKey | LTMHNWPUDSTBKD-UHFFFAOYSA-N |
| InChI | InChI=1S/C10H16O5/c1-4-13-7-8(9(11)14-5-2)10(12)15-6-3/h7H,4-6H2,1-3H3 |
| PubChem CID | 6871 |
| UN Number | UN3082 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2918.99.50.00 |
| Tariff Code | 2918999090 |
Safety & GHS
-
Health Hazard
GHS07
-
Serious Health Hazard
GHS08
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H317 May cause an allergic skin reaction
- H319 Causes serious eye irritation
- H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled
- H400 Very toxic to aquatic life
- H411 Toxic to aquatic life with long lasting effects
Precautionary statements
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P284 Wear respiratory protection
- P302+352 IF ON SKIN: Wash with soap and water
- P304+340 IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing
- 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, Portuguese, 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
- 1,3-diethyl 2-(ethoxymethylidene)propanedioate
- Diethyl 2-(ethoxymethylene)malonate
- diethyl 2-(ethoxymethylene)propanedioate
- Diethyl EMME
- Diethyl Ethoxymethylidenemalonate
- Ethoxymethylenemalonic acid diethyl ester
- MALONIC ACID, (ETHOXYMETHYLENE)-, DIETHYL ESTER
- Propanedioic acid, (ethoxymethylene)-, diethyl ester
- Propanedioic acid, 2-(ethoxymethylene)-, 1,3-diethyl ester
- Propanedioic acid, 2-(ethoxymethylene)-, diethyl ester
Frequently asked questions
What is diethyl ethoxymethylenemalonate commonly used for?
It is primarily used as an intermediate in organic synthesis, particularly in the production of pharmaceuticals, agrochemicals, and fine chemicals like 4-quinolones (via the Gould-Jacobs reaction), pyrimidines, pyrazoles and other heterocycles.
What is the chemical formula and molecular weight of diethyl ethoxymethylenemalonate?
The chemical formula is C10H16O5, and the molecular weight is 216.23 g/mol.
How should diethyl ethoxymethylenemalonate be stored?
Store in a tightly sealed container at ambient temperature, away from moisture and direct sunlight.
What purity grades or specifications are available for this product?
Molekula supplies this product in technical grade and high-purity grade (typically ≥98%).
Can Molekula supply diethyl ethoxymethylenemalonate in bulk quantities?
Yes, we offer bulk quantities (typically ≥25 kg) with flexible packaging options, including drums and IBCs.
What documentation is provided with each order of diethyl ethoxymethylenemalonate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.