9-ethylcarbazole-3,6-dicarboxylic acid

3，6-二乙酰基-N-乙基咔唑

9-ethylcarbazole-3,6-dicarbaldehyde

9-ethyl-3-N,3-N,6-N,6-N-tetramethylcarbazole-3,6-diamine

1-[9-ethyl-6-(2-oxo-2-phenylacetyl)carbazol-3-yl]-2-phenylethane-1,2-dione