Diethyl oxalate
- CAS No.
- 95-92-1
- Chemical Name:
- Diethyl oxalate
- Synonyms
- ETHYL OXALATE;OXALIC ACID DIETHYL ESTER;Oxalic ether;Ceftriaxone Impurity 5;GKSW;oxalicether;EthyIoxalate;Diethyl oxate;Diαthyloxalat;dlethyloxalate
- CBNumber:
- CB4400958
- Molecular Formula:
- C6H10O4
- Molecular Weight:
- 146.14
- MOL File:
- 95-92-1.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/11/28 16:31:43
| Melting point | -41 °C (lit.) |
|---|---|
| Boiling point | 185 °C (lit.) |
| Density | 1.076 g/mL at 25 °C (lit.) |
| vapor density | 5.03 (vs air) |
| vapor pressure | 1 mm Hg ( 47 °C) |
| refractive index |
n |
| Flash point | 168 °F |
| storage temp. | Store below +30°C. |
| solubility | Miscible with alcohols, ether and other common organic solvents. |
| form | Liquid |
| color | Clear |
| explosive limit | 0.42-2.67%(V) |
| Water Solubility | MAY DECOMPOSE |
| Sensitive | Moisture Sensitive |
| Merck | 14,3125 |
| BRN | 606350 |
| Dielectric constant | 8.2（21℃） |
| Stability | Stable, but moisture sensitive. Incompatible with strong oxidizing agents. |
| InChIKey | WYACBZDAHNBPPB-UHFFFAOYSA-N |
| LogP | 0.560 |
| CAS DataBase Reference | 95-92-1(CAS DataBase Reference) |
| NIST Chemistry Reference | Ethanedioic acid, diethyl ester(95-92-1) |
| EPA Substance Registry System | Ethyl oxalate (95-92-1) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS05,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H302-H314-H373 | |||||||||
| Precautionary statements | P260-P280-P301+P312-P303+P361+P353-P305+P351+P338-P314 | |||||||||
| Hazard Codes | Xn,T | |||||||||
| Risk Statements | 22-36-68/21-48/25-35-61-60 | |||||||||
| Safety Statements | 23-45-36/37/39-28-26-25-24-53 | |||||||||
| RIDADR | UN 2525 6.1/PG 3 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | RO2800000 | |||||||||
| Autoignition Temperature | 410 °C | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 6.1 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29171900 | |||||||||
| Toxicity | LD50 orally in Rabbit: 400 mg/kg | |||||||||
| NFPA 704 |
|
Diethyl oxalate price More Price(16)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 75712 | Diethyl oxalate purum, ≥99.0% (GC) | 95-92-1 | 250ML | ₹1926.85 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 135364 | Diethyl oxalate ≥99% | 95-92-1 | 25G | ₹1890 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 75712 | Diethyl oxalate purum, ≥99.0% (GC) | 95-92-1 | 1L | ₹3528.95 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 135364 | Diethyl oxalate ≥99% | 95-92-1 | 1KG | ₹4140 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 135364 | Diethyl oxalate ≥99% | 95-92-1 | 3KG | ₹9926.53 | 2022-06-14 | Buy |
Diethyl oxalate Chemical Properties,Uses,Production
Chemical Properties
colourless liquid
Uses
Diethyl oxalate is used to prepare active pharmaceutical ingredients (API), plastics and dyestuff intermediates. It is also used as a solvent for cellulose esters, ethers, resins, perfumes and lacquers for electronics. It is involved in the transesterification reaction with phenol to get dipheny oxalate. It is also involved in the Claisen condensation ketosteroids to prepare glyoxalyl derivatives. Further, it is used to prepare sym-1,4-diphenyl-1,4-dihydro-1,2,4,5-polytetrazine. In addition to this, it is utilized in the microemulsion synthesis of zinc oxide nanoparticles.
Production Methods
Diethyl oxalate is produced via esterification of ethanol and oxalic acid. It is a preferred solvent for cellulose acetate and nitrate.
Application
Diethyl oxalate has the general properties of esters. It absorbs moisture in the air and decomposes slowly. It reacts with ammonia to form amide compounds and condenses with acetone to ethyl pyruvate. It is mainly used in the pharmaceutical industry. It is an intermediate of azathioprine, peripheral sulfanilamide, carboxyphenyllipase penicillin, ethoxybenzylpenicillin, chloroquine lactate, thiabendazole, sulfamethoxazole and other drugs. It can be used as an intermediate of plastics, dyes and other products, and as a solvent of cellulose and spices.
Diethyl acetate is often used as the substrate of nucleophilic reagent α,γ- Dicarbonyl esters, ketone compounds, synthesis of heterocyclic compounds, etc. synthesis α,γ- Dicarbonyl esters can be formed by nucleophilic substitution reaction between ketones and diethyl oxalate under alkaline conditions α,γ- Dicarbonyl ester (formula 1). The dicarbonyl ester often exists in enol structure and can be used to synthesize heterocyclic compounds (formula 2)
General Description
A colorless liquid. Flash point 168°F. Slightly denser than water and insoluble in water. Hence sinks in water. May irritate skin and mucous membranes; may be mildly toxic by ingestion; may emit irritating fumes in a fire. Vapors are much heavier than air. Used as a solvent for plastics and in the manufacture of perfumes and pharmaceuticals.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
Diethyl oxalate is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides
Hazard
Toxic by ingestion, strong irritant to skin and mucous membranes.
Health Hazard
TOXIC; inhalation, ingestion or contact (skin, eyes) with vapors, dusts or substance may cause severe injury, burns or death. Contact with molten substance may cause severe burns to skin and eyes. Reaction with water or moist air will release toxic, corrosive or flammable gases. Reaction with water may generate much heat that will increase the concentration of fumes in the air. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.
Fire Hazard
Combustible material: may burn but does not ignite readily. Substance will react with water (some violently) releasing flammable, toxic or corrosive gases and runoff. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapors may travel to source of ignition and flash back. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated or if contaminated with water.
Safety Profile
Poison by ingestion. Flammable liquid when exposed to heat or flame; can react with oxidzing materials. To fight fire, use foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and fumes. See also OXALATES and ESTERS.
Diethyl oxalate Preparation Products And Raw materials
Raw materials
Preparation Products
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chevron_right| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| PUNJAB CHEMICALS AND CROP PROTECTION LTD | +91-7508355205 +91-7508355205 | Punjab, India | 69 | 58 | Inquiry |
| Indian Oxalate Limited | +91-2222610140 +91-2222610140 | Maharashtra, India | 3 | 58 | Inquiry |
| TCI Chemicals (India) Pvt. Ltd. | 1800 425 7889 | New Delhi, India | 6778 | 58 | Inquiry |
| Otto Chemie Pvt. Ltd. | +91 9820041841 | Mumbai, India | 5873 | 58 | Inquiry |
| Alfa Aesar | 1 800 209 7001 | Maharashtra, India | 6913 | 58 | Inquiry |
| Central Drug House(P) Ltd. | 91-11-49404040 | New Delhi, India | 6160 | 58 | Inquiry |
| SynZeal Research Pvt Ltd | +1 226-802-2078 | Gujarat, India | 6522 | 58 | Inquiry |
| LOBA CHEMIE PVT.LTD. | 91-22-6663 6699 | Mumbai, India | 3077 | 58 | Inquiry |
| Triveni chemicals | 08048762458 | New Delhi, India | 6093 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| JSK Chemicals | 58 |
| PUNJAB CHEMICALS AND CROP PROTECTION LTD | 58 |
| Indian Oxalate Limited | 58 |
| TCI Chemicals (India) Pvt. Ltd. | 58 |
| Otto Chemie Pvt. Ltd. | 58 |
| Alfa Aesar | 58 |
| Central Drug House(P) Ltd. | 58 |
| SynZeal Research Pvt Ltd | 58 |
| LOBA CHEMIE PVT.LTD. | 58 |
| Triveni chemicals | 58 |
Related articles
- the synthesis of diethyl oxalate
- Diethyl oxalate is an organic compound with molecular formula C6H10O4. Colorless oily liquid with aromatic smell
- Apr 15，2022
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