
Diethyl Oxalate (CAS 95-92-1), min. 99.5%, supplied wholesale by Zyntex. Reactive diester for keto esters, heterocycles and oxamides in pharmaceutical, agrochemical and fine chemical synthesis. CoA and SDS with every lot.
Diethyl oxalate (C6H10O4) is a colorless liquid with a faint aromatic odor that boils at about 185°C. It is the diethyl ester of oxalic acid and hydrolyzes slowly in water.
In addition, chemists use it in Claisen condensations with ketones and esters to make α-keto esters and 2,4-dioxo esters, which are key building blocks for pyrazoles, quinoxalines and other heterocycles found in pharmaceuticals and crop protection agents. Similarly, it reacts with amines to form oxamides and serves as a solvent for cellulose esters and some resins.
Furthermore, related ester reagents in our range include 4-Nitrophenyl chloroformate and 2-Ethylhexyl chloroformate, and Ethyl Iodide for ethylation.
Typical uses include, for example:
💊 Pharmaceutical Synthesis
Building block for heterocyclic intermediates.
🌱 Agrochemicals
Intermediate for crop protection agents.
🧪 Fine Chemicals
Reagent for keto esters as well as oxamides.
🎨 Solvents
Solvent for cellulose esters as well as resins.
| Parameter | Standard Value |
|---|---|
| Product Name | Diethyl oxalate |
| CAS Number | 95-92-1 |
| Molecular Formula / Weight | C6H10O4 / 146.14 g/mol |
| Assay / Purity | Min 99.5% |
| Appearance | Colorless liquid |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: Harmful if swallowed and causes serious eye irritation. Keep away from heat and ignition sources, and also wear gloves and eye protection. Store in tightly closed containers in a dry place, because moisture slowly hydrolyzes it. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
What is the main use of diethyl oxalate?
Mainly as a building block in Claisen condensations for keto esters and heterocycles in pharmaceutical as well as agrochemical synthesis.
How should buyers store and handle diethyl oxalate?
In tightly closed containers in a dry place, because moisture slowly converts it to oxalic acid and ethanol.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.