| 75167-04-3 | 1,8-Naphthyridine-3-carboxylic acid, 7-[4-(ethoxycarbonyl)-1-piperazinyl]-6-fluoro-1,4-dihydro-4-oxo-, ethyl ester | C18H21FN4O5 |
| 75167-06-5 | 1,8-Naphthyridine-3-carboxylic acid, 1,4-dihydro-1-ethyl-6-fluoro-4-ox o-7-(1-piperazinyl)-, monomethanesulfonate | C16H21FN4O6S |