Overview
Diethyl oxalate ( CAS 95-92-1 ), also known as ethyl oxalate, is the diethyl ester of oxalic acid used primarily as a chemical intermediate and solvent in organic synthesis. It functions as a reactive building block for introducing the oxalyl group into target molecules.
The compound serves as a catalyst precursor in specialty chemical manufacturing and industrial processes. In pharmaceutical synthesis, it acts as a key condensation reagent for producing active pharmaceutical ingredients, particularly in the manufacture of barbiturates and antimalarials.
It is also utilized in the production of other heterocyclic compounds. Formulators in personal care use it as a fragrance ingredient and fixative, where its mild ester character contributes to scent profiles in fine fragrances and cosmetic products.
As a FEMA -recognized flavoring agent, it is incorporated at controlled levels in food flavor compositions to impart fruity, wine-like nuances. In catalysis applications, it acts as an oxalate precursor for preparing metal oxalate catalyst supports.
The product is also used as an intermediate in various industrial chemical processes. Diethyl oxalate is supplied as a clear liquid in standard commercial packaging ranging from drums to IBC containers for bulk distribution.
Technical grade and high-purity grades are available to meet the differing requirements of industrial synthesis versus pharmaceutical and flavor applications. Buyers sourcing for regulated end uses should confirm grade specifications and purity certificates.
Quality assurance is maintained through rigorous testing to ensure compliance with industry requirements. Please contact our technical sales team for detailed documentation regarding specific application needs and procurement logistics.
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Physical Properties
| Melting Point | -38.5 °C |
| Boiling Point | 185.7 °C @ Press: 760 Torr |
| Density | 1.0785 g/cm³ @ Temp: 20 °C |
| Flash Point | 168 °F |
| Appearance | colourless liquid |
| Color | Clear |
| Form | Liquid |
| Water Solubility | MAY DECOMPOSE |
| Vapor Pressure | 1 mm Hg ( 47 °C) |
| Refractive Index | n 20/D 1.410(lit.) |
| Log P | 0.560 |
Safety & Handling
Warning GHS07 GHS05 GHS08 Hazard Statements H227 Combustible liquid H302 Harmful if swallowed H314 Causes severe skin burns and eye damage H315 Causes skin irritation H319 Causes serious eye irritation H373 May causes damage to organs through prolonged or repeated exposure Precautionary Statements P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P316 Get emergency medical help immediately. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P363 Wash contaminated clothing before reuse. P403 Store in a well-ventilated place. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P370+P378 Use … for extinction. P301+P330+P331 Rinse mouth. Do NOT induce vomiting. P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 29171900 |
| UN Number | 2525 |
| ADR Class | 6.1 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 1 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 95-92-1
- EC Number
- 202-464-1
- Mol. Weight
- 146.14
- HS Code
- 29171900
- Category
- Catalysts & Catalyst Precursors