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Diethyl oxalate

Diethyl oxalate
Diethyl oxalate structure
Chemical Name:
Diethyl oxalate
oxalicether;Oxalic ether;ETHYL OXALATE;Diethyl oxate;Diαthyloxalat;C2H5OCOCOOC2H5;dlethyloxalate;Diethyl oxalat;Dithyl oxalate;DIETHYL OXALATE
Molecular Formula:
Formula Weight:
MOL File:

Diethyl oxalate Properties

Melting point:
−41 °C(lit.)
Boiling point:
185 °C(lit.)
1.076 g/mL at 25 °C(lit.)
vapor density 
5.03 (vs air)
vapor pressure 
1 mm Hg ( 47 °C)
refractive index 
n20/D 1.410(lit.)
Flash point:
168 °F
storage temp. 
Store below +30°C.
Miscible with alcohols, ether and other common organic solvents.
explosive limit
Water Solubility 
Moisture Sensitive
Stable, but moisture sensitive. Incompatible with strong oxidizing agents.
CAS DataBase Reference
95-92-1(CAS DataBase Reference)
NIST Chemistry Reference
Ethanedioic acid, diethyl ester(95-92-1)
EPA Substance Registry System
Ethanedioic acid, diethyl ester(95-92-1)
  • Risk and Safety Statements
Signal word  Danger
Hazard statements  H227-H315-H319-H302-H314-H360FD-H371-H372
Precautionary statements  P210e-P280a-P301+P312a-P501a-P210-P264-P270-P301+P312+P330-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P370+P378-P403+P235-P501-P201-P260-P280-P303+P361+P353-P305+P351+P338-P308+P313
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
HazardClass  6.1
PackingGroup  III
HS Code  29171900
Toxicity LD50 orally in Rabbit: 400 mg/kg

NFPA 704

Diamond Hazard Value Description
Flammability   2 Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur and multiple finely divided suspended solids that do not require heating before ignition can occur. Flash point between 37.8 and 93.3 °C (100 and 200 °F). (e.g. diesel fuel, sulfur)
Instability   0 Normally stable, even under fire exposure conditions, and is not reactive with water (e.g. helium,N2)

(NFPA, 2010)

Diethyl oxalate price More Price(17)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 135364 Diethyl oxalate ≥99% 95-92-1 1kg $48.5 2018-11-13 Buy
Sigma-Aldrich 135364 Diethyl oxalate ≥99% 95-92-1 3kg $120 2018-11-13 Buy
TCI Chemical O0078 Diethyl Oxalate >98.0%(GC) 95-92-1 25g $12 2018-11-22 Buy
TCI Chemical O0078 Diethyl Oxalate >98.0%(GC) 95-92-1 500g $23 2018-11-22 Buy
Alfa Aesar A14498 Diethyl oxalate, 99% 95-92-1 500g $21.7 2018-11-13 Buy

Diethyl oxalate Chemical Properties,Uses,Production

Chemical Properties

colourless liquid


manufacture of phenobarbital, ethylbenzyl malonate, triethylamine, and similar chemicals, plastics, dyestuff intermediates. Solvent for cellulose esters, perfumes.

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


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

ETHYL 1-METHYL-5-PROPYL-1H-PYRAZOLE-3-CARBOXYLATE 5-TERT-BUTYL-1H-PYRAZOLE-3-CARBOXYLIC ACID 3-Phenyl-1H-pyrazole-5-carboxamide ,97% Ethyl 3-(3-chlorophenyl)-1H-pyrazole-5-carboxylate ,97% 5-(3-CHLOROPHENYL)-1H-PYRAZOLE-3-CARBOXYLIC ACID ETHYL 5-(3-NITROPHENYL)-1H-PYRAZOLE-3-CARBOXYLATE ETHYL 2,4-DIOXOHEPTANOATE 5-Fluoroindole-2-carboxylic acid 3-(4-Methoxyphenyl)-1H-pyrazole-5-carboxamide ,97% 1-Methyl-5-propyl-1H-pyrazole-3-carboxylic acid amide ,97% ETHYL 5-(2-FURYL)-1H-PYRAZOLE-3-CARBOXYLATE ETHYL 5-METHYLISOXAZOLE-3-CARBOXYLATE Ethyl 5-(tert-butyl)-2H-pyrazole-3-carboxylate 3-(4-CHLOROPHENYL)-1H-PYRAZOLE-5-CARBOHYDRAZIDE ETHYL A-ETHOXYOXALYLPHENYL ACETATE 5-Chloroindole 5-METHYL-1 H-PYRAZOLE-3-CARBOXYLIC ACID HYDRAZIDE Ethyl 2,4-dioxovalerate 2,2-dichloro-1-(4-ethyoxy phenyl)cy-clopropane carboxylic acid Cromolyn Disodium Salt dimethyl 4-chloropyridine-2,6-dicarboxylate 4-Fluoroindole 5-(4-METHOXY-PHENYL)-2H-PYRAZOLE-3-CARBOXYLIC ACID ETHYL ESTER Gliclazide Ethyl 5-thien-2-yl-1H-pyrazole-3-carboxylate Imazamox 1-METHYL-3-PROPYLPYRAZOLE-5-CARBOXYLIC ACID ETHYL 3-(4-CHLOROPHENYL)-1H-PYRAZOLE-5-CARBOXYLATE ETHYL PROPIONYL PYRUVATE Ethyl 3-(5-methylfuran-2-yl)-1H-pyrazole-5-carboxylate ,97% OROTIC ACID MONOHYDRATE 1-METHYL-5-PROPYL-1H-PYRAZOLE-3-CARBOXYLIC ACID 5-PHENYL-2H-PYRAZOLE-3-CARBOXYLIC ACID ETHYL ESTER ETHYL 1,3-BENZOTHIAZOLE-2-CARBOXYLATE DIETHYL OXALPROPIONATE 5-Methyl-1H-pyrazole-3-carboxylic acid 4-BROMO-5-METHYL-1H-PYRAZOLE-3-CARBOXYLIC ACID Chelidonic acid ETHYL 2-(1-METHYL-1H-IMIDAZOL-2-YL)-2-OXOACETATE 3-(tert-Butyl)-1H-pyrazole-5-carbohydrazide

Diethyl oxalate Suppliers

Global( 259)Suppliers
Supplier Tel Fax Email Country ProdList Advantage
Anhui Royal Chemical Co., Ltd.
+86-025-86736275 CHINA 488 55
Henan DaKen Chemical CO.,LTD.
+86-371-55531817 CHINA 21707 58
Henan Tianfu Chemical Co.,Ltd.
0371-55170693 CHINA 20672 55
Shanghai Time Chemicals CO., Ltd.
+86-021-57951555 CHINA 1365 55
Mainchem Co., Ltd.
+86-0592-6210733 CHINA 32447 55
Hefei TNJ Chemical Industry Co.,Ltd.
86-0551-65418684 18949823763
86-0551-65418684 China 1861 55
career henan chemical co
+86-371-86658258 CHINA 30001 58
Chemwill Asia Co.,Ltd.
86-21-51861608;;; CHINA 23980 58
Hubei Jusheng Technology Co.,Ltd.
027-59599243 CHINA 28236 58
Jinan Finer Chemical Co., Ltd
+86-531-88989539 CHINA 946 58

View Lastest Price from Diethyl oxalate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2019-08-06 Diethyl oxalate
US $1.00 / KG 1KG 99% 100MT Henan Xiangtong Chemical Co., Ltd.
2018-12-18 Diethyl oxalate
US $1.00 / kg 1kg 99% Customized career henan chemical co

Diethyl oxalate Spectrum

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