Ethyl pentanoate pentanoic acid ethyl ester valeric acid ethyl ester 539-82-2 FEMA No. 2462 NSC 8868 Valeric acid, ethyl ester (8CI) 30784_FLUKA ZINC01648285 290866_ALDRICH W246204_ALDRICH Ethyl n-valerate Ethyl valerate NSC8868 Pentanoic acid, ethyl ester Valeric acid, ethyl ester AI3-01270 EINECS 208-726-1 Ethyl valerianate