CAS 5781-53-3: Methyl oxalyl chloride

Description:Methyl oxalyl chloride, with the CAS number 5781-53-3, is an organic compound characterized by its structure, which includes a methyl group and two oxalyl chloride functional groups. It is a colorless to pale yellow liquid that is known for its strong reactivity, particularly as a chlorinating agent. This compound has a pungent odor and is highly corrosive, necessitating careful handling and storage in a well-ventilated area with appropriate personal protective equipment. Methyl oxalyl chloride is soluble in organic solvents but reacts vigorously with water, releasing hydrochloric acid and forming methyl oxalate. It is primarily used in organic synthesis, particularly in the preparation of various chemical intermediates and in the production of pharmaceuticals and agrochemicals. Due to its reactivity, it poses significant health hazards, including respiratory irritation and potential skin burns, making it essential to follow safety protocols when working with this substance.

Formula:C₃H₃ClO₃

InChI:InChI=1S/C3H3ClO3/c1-7-3(6)2(4)5/h1H3

InChI key:InChIKey=ZXUQEPZWVQIOJE-UHFFFAOYSA-N

SMILES:O=C(Cl)C(=O)OC

Synonyms:
(Chloro)(oxo)acetic acid methyl ester
Acetic acid, 2-chloro-2-oxo-, methyl ester
Acetic acid, chlorooxo-, methyl ester
Chloroglyoxylic acid methyl ester
Glyoxylic acid, chloro-, methyl ester
Methoxalyl chloride
Methoxyoxalyl chloride
Methyl (chlorocarbonyl)formate
Methyl (chloroformyl)formate
Methyl 2-chloro-2-oxoacetate
See more synonyms
Methyl Chlorooxoacetate
Methyl chloroglyoxylate
Methyl chlorooxalate
Monomethyl oxalate chloride
Monomethyl oxalate monochloride
Monomethyl oxalyl chloride
Oxalic acid methyl ester chloride
Oxalic acid monomethyl ester chloride
Methyl oxalyl chloride

Found 9 products.

Product data	Purity	Price range	Estimated delivery
Methyl Chloroglyoxylate REF: 3B-C1561CAS: 5781-53-3	>98.0%(GC)(T)	85.00 €~505.00 €	Thu 10 Apr 25
Methyl oxalyl chloride, 97% REF: 02-L13258CAS: 5781-53-3	97%	42.00 €~280.00 €	Fri 11 Apr 25
Methyl chlorooxoacetate REF: IN-DA0038MICAS: 5781-53-3	98%	27.00 €~197.00 €	Thu 17 Apr 25
Methyl oxalyl chloride REF: 7W-GK4129CAS: 5781-53-3	≥ 98.0%	To inquire	Mon 21 Apr 25
Methyl oxalyl chloride REF: 54-OR924197CAS: 5781-53-3	98%	32.00 €~153.00 €	Mon 21 Apr 25
Methyl oxalyl chloride, 97% REF: AC-16600CAS: 5781-53-3	97%	To inquire	Tue 22 Apr 25
METHYL (CHLOROCARBONYL)FORMATE REF: 10-F386747CAS: 5781-53-3	97.0%	To inquire	Tue 29 Apr 25
Methyl Chlorooxoacetate REF: TR-M295405CAS: 5781-53-3	- - -	292.00 €	Wed 28 May 25
Methyl chlorooxoacetate REF: 3D-FM46524CAS: 5781-53-3	Min. 95%	150.00 €~1,421.00 €	Thu 29 May 25