Ethyl oxalyl monochloride
Ethyl chloroglyoxylate~Oxalic acid monoethyl ester chloride; ethyl chlorooxoacetate; ethyl (chloroformyl)formate; mono-Ethyl oxalyl chloride; ETHOXALYL CHLORIDE; ETCOX; ETHYL OXALYL CHLORIDE; ETHYL CHLOROGLYOXALATE; ETHYL CHLOROGLYOXYLATE