| NO. | Name | CAS No. |
| Q0001 | Indole-3-carboxylic acid | 771-50-6 |
| A0580 | Indole-6-carboxylic acid | 1670-82-2 |
| Q0046 | 4-Acetoxyindole | 5585-96-6 |
| Q0002 | 6-Acetylindole | 81223-73-6 |
| Q0039 | 1-Benzenesulfony-3-bromo-5-chloro-4-fluoro-1H-indole-2-carboxylic acid ethyl ester | 1018450-46-8 |
| Q0044 | 5-Bromoindole-2-carboxylic acid | 7254-19-5 |
| Q0043 | Ethyl 5-bromoindole-2-carboxylate | 16732-70-0 |
| Q0045 | Methyl 5-bromo-1H-indole-2-carboxylate | 210345-56-5 |
| Q0003 | Ethyl 6-bromoindole-2-carboxylate | 103858-53-3 |
| Q0004 | 6-Bromoindole-2-carboxylic acid | 16732-65-3 |
| Q0005 | 5-Bromo-2-methylindole | 1075-34-9 |
| Q0006 | 5-Carboxyindole-2-carboxylic acid | 117140-77-9 |
| Q0009 | 7-Chloroindole-2-carboxylic acid | 28899-75-4 |
| Q0007 | 6-Chloro-5-fluoro-2-xoindole | 100487-74-9 |
| Q0008 | 5-Chloro-4-fluoroindole-2-carboxylic acid | 186446-26-4 |
| Q0010 | 5,6-Dichloroindolin-2-one | 71293-59-9 |
| Q0011 | 4,5-Difluoroindole | 247564-63-2 |
| Q0012 | 4,6-Difluoroindole | 199526-97-1 |
| Q0013 | 4,6-Difluoroindole-2-carboxylic acid | 247564-66-5 |
| Q0014 | 5,6-Difluoroindole-2-carboxylic acid | 169674-35-5 |