Ethyl Malonyl Chloride

• CAT Number: R028719
• CAS Number: 36239-09-5
• Molecular Formula: C5H7ClO3
• Molecular Weight: 150.56
• Purity: ≥95%
• Synonyms: (Chlorocarbonyl)acetic Acid Ethyl Ester; (Chloroformyl)acetic Acid Ethyl Ester; (Ethoxycarbonyl)acetyl Chloride; 2-(Ethoxycarbonyl)acetyl Chloride; 3-Chloro-3-oxopropanoic Acid Ethyl Ester; 3-Ethoxy-3-oxopropanoyl Chloride; Carbethoxyacetyl Chloride
• Storage: -20°C
• IUPAC Name: ethyl 3-chloro-3-oxopropanoate
• InChI: InChI=1S/C5H7ClO3/c1-2-9-5(8)3-4(6)7/h2-3H2,1H3
• InChIKey: KWFADUNOPOSMIJ-UHFFFAOYSA-N
• SMILES: CCOC(=O)CC(=O)Cl

Ethyl malonyl chloride（Cat No.:R028719）is an organic compound with the molecular formula C5H7ClO3, consisting of a malonyl chloride backbone substituted with an ethyl ester group. It is a reactive acylating agent used in organic synthesis, particularly for introducing malonyl functionality into molecules, aiding in the preparation of pharmaceuticals, agrochemicals, and heterocyclic compounds. As an acid chloride, it readily reacts with nucleophiles such as amines, alcohols, and organometallic reagents. Ethyl malonyl chloride is a colorless to pale yellow liquid and should be handled under anhydrous conditions with proper personal protective equipment due to its corrosive and lachrymatory nature.