5-羟基-2-茚酮

4-hydroxy-1,3-dihydroinden-2-one

N,N-dimethyl-1-(2-phenylinden-1-ylidene)methanamine

6,7-dihydroindeno[2,1-c]isoquinolin-5-one

5-methyl-6H-indeno[2,1-b]indole