6-fluoro-1-(4-fluorophenyl)-7-(2,2,3,3,5,5,6,6-octadeuteriopiperazin-1-yl)-4-oxoquinoline-3-carboxylic acid;hydrochloride;6-Fluoro-1-(4-fluorophenyl)-1,4-dihydro-4-oxo-7-(1-piperazinyl-d8)-3-quinolinecarboxylic Acid Hydrochloride; A 56620-d8; PD 121960-d8; Sarafin-d8;
