1-(4-methylphenyl)pyrrolidine-2,5-dione

4-hydroxy-4-methylpentanoic acid

Butanediamine, N,N'-diphenyl-

1,4-二(4-甲氧基苯基)-1,4-丁烷二酮

4,4-bis(4-methoxyphenyl)-4-butyrolactone