Ethoxyoxalyl Chloride

• CAT Number: R023793
• CAS Number: 4755-77-5
• Molecular Formula: C4H5ClO3
• Molecular Weight: 136.531
• Purity: ≥95%
• Synonyms: Chlorooxoacetic Acid Ethyl Ester; Chloroglyoxylic Acid Ethyl Ester; 1-(Chlorocarbonyl)formic Acid Ethyl Ester; Ethoxalyl Chloride; Ethyl (Chlorocarbonyl)carboxylate; Ethyl (Chloroformyl)formate; Ethyl 2-Chloro-2-oxoacetate; Ethyl 2-Chloro-2-oxoethano
• Storage: Store at RT
• IUPAC Name: ethyl 2-chloro-2-oxoacetate
• InChI: InChI=1S/C4H5ClO3/c1-2-8-4(7)3(5)6/h2H2,1H3
• InChIKey: OWZFULPEVHKEKS-UHFFFAOYSA-N
• SMILES: CCOC(=O)C(=O)Cl

Ethoxyoxalyl Chloride(CAT: R023793) is a reactive acyl chloride derivative with the molecular formula C₄H₅ClO₃. Structurally, it consists of an ethyl ester linked to an oxalyl chloride moiety, making it a bifunctional reagent with both ester and acyl chloride groups. It is a colorless to pale yellow liquid with a pungent odor and is highly moisture-sensitive. Ethoxyoxalyl chloride is primarily used as a reagent in organic synthesis, especially in acylation reactions and the preparation of oxalate esters and amides. Due to its reactivity, it must be handled under dry, inert conditions. It is valuable in pharmaceutical and agrochemical intermediate synthesis.