| 英文同义词: | 2,2-dimethyl-3-isopropyliden-beta-propiolactone;2,2,4-TRIMETHYL-3-HYDROXY-3-PENTENOICACIDBETA-LACTONE;2,2,4-Trimethyl-3-penten-3-olide;3,3-Dimethyl-4-(1-methylethylidene)oxetan-2-one;2-Oxetanone, 3,3-dimethyl-4-(1-methylethylidene)- (9ci);2-Oxetanone, 4-isopropylidene-3,3-dimethyl-;3-Hydroxy-2,2,4-trimethyl-3-pentenoic acid, beta-lactone;3-Pentenoic acid, 3-hydroxy-2,2,4-trimethyl-, beta-lactone |