E1T1H4Y4L1S1
12 points
ETHYLS is validvalid
ETHYL, a univalent chemical radical
ETHYL, a univalent chemical radical, also ETHINYL, ETHOXY, ETHOXYL, ETHYNYL
ETHYL, a univalent chemical radical
ETHYL, a univalent chemical radical, also ETHINYL, ETHOXY, ETHOXYL, ETHYNYL