N-乙基马来酸

1-[2-(4-hydroxyphenyl)ethyl]pyrrole-2,5-dione

octahydro-4,8-ethenofuro[3',4':3,4]cyclobuta[1,2-f][2]benzofuran-1,3,5,7-tetrone

3-(2,3,5,6-四甲基苯甲酰)丙烯酸

2-[(2-methylphenyl)methyl]butanedioic acid