Methyl Chlorooxoacetate

• CAT Number: R035005
• CAS Number: 5781-53-3
• Molecular Formula: C3H3ClO3
• Molecular Weight: 122.50
• Purity: ≥95%
• Synonyms: 2-Chloro-2-oxoacetic Acid Methyl Ester; Chloroglyoxylic Acid Methyl Ester; Methoxalyl Chloride; Methyl (Chlorocarbonyl)formate; Methyl (Chloroformyl)formate; Methyl 2-Chloro-2-oxoacetate; Methyl Chloroglyoxylate; Methyl Chlorooxalate; Methyl Oxalyl C
• Storage: Store at -20°C
• IUPAC Name: methyl 2-chloro-2-oxoacetate
• InChI: InChI=1S/C3H3ClO3/c1-7-3(6)2(4)5/h1H3
• InChIKey: ZXUQEPZWVQIOJE-UHFFFAOYSA-N
• SMILES: COC(=O)C(=O)Cl

Methyl chlorooxoacetate（Cat No.:R035005）is a reactive organic compound with the molecular formula C3H3ClO3. It features a methyl ester group, a ketone (oxo) function, and a chloro substituent, making it highly electrophilic and useful in various synthetic applications. This compound appears as a colorless to pale yellow liquid and is commonly employed as an intermediate in the preparation of pharmaceuticals, agrochemicals, and specialty chemicals. Its reactivity toward nucleophiles allows for selective carbon–carbon and carbon–heteroatom bond formation, especially in enolate chemistry, acylation reactions, and the construction of heterocyclic compounds in organic synthesis.