*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UR6475050 CHEMICAL NAME : 3(2H)-Pyridazinone, 4,5-dihydro-6-(4-(4-pyridinylamino)phenyl)- CAS REGISTRY NUMBER : 98326-32-0 LAST UPDATED : 199606 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C15-H14-N4-O MOLECULAR WEIGHT : 266.33 COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 6-(4-(4-Pyridinylamino)phenyl)-4,5-dihydro-3(2H)-pyridazinone *** 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 : 341 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0145019 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 97 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : EPXXDW European Patent Application. (U.S. Patent and Trademark Office, Foreign Patents, Washington, DC 20231) Volume(issue)/page/year: #0145019 *** END OF RECORD ***