*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : QN2807250 CHEMICAL NAME : 1,8-Naphthyridine-3-carboxylic acid, 1,4-dihydro-1-ethyl-6-fluoro-4-oxo-7-(4-pyridinyl)- CAS REGISTRY NUMBER : 90679-45-1 LAST UPDATED : 199806 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C16-H12-F-N3-O3 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 1,4-Dihydro-1-ethyl-6-fluoro-4-oxo-7-(4-pyridinyl)-1,8-naphthyridine-3-c arboxylic acid * 1-Ethyl-6-fluoro-1,4-dihydro-4-oxo-7-(4-pyridyl)-1,8-naphthyridine-3-car boxylic acid *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >2 gm/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : USXXAM United States Patent Document. (U.S. Patent Office, Box 9, Washington, DC 20231) Volume(issue)/page/year: #4497816 *** END OF RECORD ***