4-oxo-4-prop-2-enoxybutanoate

4-(naphthalen-1-ylamino)-4-oxobutanoic acid

N-戊基琥珀酰亚胺

(2,5-二氧代吡咯烷-1-基)乙酸

1,1,1,4,4-pentafluoro-4-(1,1,4,4,4-pentafluorobutoxy)butane