1071-71-2 4-02-00-01971 (Beilstein Handbook Reference) 6-Chloro-6-oxo-hexanoic acid, ethyl ester BRN 1100317 EINECS 213-993-2 Ethyl 6-chloro-6-oxohexanoate HEXANOIC ACID, 6-CHLORO-6-OXO-, ETHYL ESTER