Ethyl oxalyl monochloride-Shandong Huashi Import & Export Co., Ltd.

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Ethyl oxalyl monochloride

Brand：HS

Model：25kg/drum

Purity：99%

Cas：4755-77-5

Createtime： 2026-04-14
Updatetime： 2026-09-30

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Product Details

useage	Industrial use
deliveryInfo
appearance	liquid
Molecular Weight	136.53
aliasen
supplyCapacity	50000MT/Month
harbor	Qingdao,China
minorder	1KG
Appearance	Colorless to almost colorless clear liquid

Shandong Huashang Chemical Co., Ltd. is a high-tech enterprise specializing in the research and development, manufacturing, and sales of fine chemicals. Headquartered in Jinan, Shandong, China, we are committed to delivering high-quality products to our global partners. Currently, over 90% of our products are exported to developed markets, including North America, Europe, Japan, South Korea, and the Middle East.

Basic Information

Product Name: Ethyl oxalyl monochloride

Alias: Ethyl Chloroglyoxylate; Chlorooxalic acid ethyl ester; Ethyl (chloroformyl)formate; Ethyl chlorooxoacetate; Monoethyl oxalyl chloride; Oxalic acid monoethyl ester chloride; MFCD00000706

CAS No.: 4755-77-5

EINECS No.: 225-285-0

Molecular Formula: C?H?ClO?

Molecular Weight: 136.53 g/mol

Classification: Organic acylating agent, organic intermediate, fine chemical, pharmaceutical intermediate

Physical & Chemical Properties

Appearance: Colorless to almost colorless clear liquid, may be slightly pale yellow, with pungent odor

Density: 1.222 g/cm3 at 25 °C (lit.)

Boiling Point: 135 °C (lit.)

Flash Point: 41 °C

Refractive Index: 1.416–1.418

Solubility: Slightly miscible with water, reacts violently with water to release toxic gas; soluble in organic solvents such as chloroform, ethyl acetate, ethanol and ether

Purity: ≥98.0% (GC), ≥99.0% available

Storage Condition: Sealed and stored under inert gas, cool and dark place below 15 °C; avoid moisture, water, oxidants, open flames and high temperature; keep away from incompatible substances, moisture-sensitive

Main Uses

Organic Synthesis: As a versatile acylating agent and organic building block, it is widely used in organic synthesis reactions such as Claisen condensation and acylation. It can efficiently introduce the ethoxy oxalyl group into target molecules, serving as a key synthetic equivalent of ethyl oxalate, and is used to prepare α-keto esters, α-ketoacids and various heterocyclic compounds.
Pharmaceutical & Agrochemical Fields: As an important pharmaceutical intermediate, it is used in the synthesis of pharmaceutical raw materials and intermediates; it is also applied in the research and development of agrochemicals, providing key support for the synthesis of functional compounds such as pesticides and herbicides.
Other Fields: Used as a chemical reagent in scientific research experiments, suitable for the research of organic reaction mechanisms and the development of new organic compounds; also used in the synthesis of downstream products such as sodium oxamate and ethyl 5-methyl-1,3,4-thiadiazole-2-carboxylate.

Specification Table

Item	Specification	Unit	Remarks
Product Name	Ethyl oxalyl monochloride	—
CAS Number	4755-77-5	—	EINECS: 225-285-0; MFCD00000706
Molecular Formula	C?H?ClO?	—	Organic acyl chloride compound
Molecular Weight	136.53	g/mol
Appearance	Colorless to almost colorless clear liquid	—	May be slightly pale yellow, pungent odor
Purity	≥98.0 (≥99.0 available)	%	GC
Boiling Point	135	℃	lit.
Solubility	Slightly miscible with water, soluble in organic solvents	—	Reacts violently with water, releases toxic gas