1,1-Diethoxy-2-chloroethane 2-Chloro-1,1-diethoxyethane 2-Chloroacetaldehyde diethyl acetal 621-62-5 Acetaldehyde, chloro-, diethyl acetal Chloroacetaldehyde diethyl acetal Diethoxyethyl chloride Ethane, 2-chloro-1,1-diethoxy- Monochloroacetaldehyde diethyl acetal NSC8436