N-苄基丁二酰胺

2-乙酰基环戊烷-1,3-二酮

2,3,7,8-tetrahydropyridazino[1,2-a]pyridazine-1,4,6,9-tetrone

N,N'-dimethyl-N,N'-diphenylbutanediamide

1,4,9,12-tetraoxacyclohexadecane-5,8,13,16-tetrone