| 81384-04-5 | 1H-Pyrazolo[1,2-a]pyridazine-5-carboxylic acid, hexahydro-2-(2-mercaptoethyl)-2-methyl-1,3-dioxo-, cis- | C11H16N2O4S |
| 81384-05-6 | 1H-Pyrazolo[1,2-a]pyridazine-5-carboxylic acid, hexahydro-2-(2-mercaptoethyl)-2-methyl-1,3-dioxo-, trans- | C11H16N2O4S |
| 81384-50-1 | pyrroloindolizine | C21H28 N2 O2 |