| Title:  Marbofloxacin CAS Registry Number:  115550-35-1 CAS Name:  9-Fluoro-2,3-dihydro-3-methyl-10-(4-methyl-1-piperazinyl)-7-oxo-7H-pyrido[3,2,1-ij][4,1,2]benzoxadiazine-6-carboxylic acid Trademarks:  Marbocyl (V oquinol);  Zeniquin (Pfizer) Molecular Formula:  C17H19FN4O4 Molecular Weight:  362.36 Percent Composition:  C 56.35%, H 5.29%, F 5.24%, N 15.46%, O 17.66% Literature References:  Fluorinated quinolone antibacterial.  Prepn:  M. Aoki et al., EP 259804; K. Yokose et al., US 4801584 (1987, 1989 both to Hoffmann-LaRoche).  HPLC determn in plasma:  M. A. Garcia et al., J. Chromatogr. B 729, 157 (1999).  Evaluation of experimental surgical infection in dogs:  P. Gruet et al., Vet. Rec. 140, 199 (1997).  Pharmacokinetics and efficacy in cattle:  C. Eyett-Burton et al., Cattle Practice 5, 289 (1997).  Pharmacokinetics in renally impaired dogs:  H. P. Lefebvre et al., J. Vet. Pharmacol. Ther. 21, 453 (1998). Properties:  Crystals from methanol, mp 268-269° (dec). Melting point:  mp 268-269° Therap-Cat-Vet:  Antibacterial.  |