*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : XZ5495000 CHEMICAL NAME : 1,2,4-Triazolo(4,3-b)pyridazine, 8-phenyl-6-trifluoromethyl- CAS REGISTRY NUMBER : 73673-79-7 BEILSTEIN REFERENCE NO. : 1137833 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C12-H7-F3-N4 MOLECULAR WEIGHT : 264.23 WISWESSER LINE NOTATION : T56 AN CNN INJ FR& HXFFF COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * 8-Phenyl-6-trifluoromethyl-1,2,4-triazolo(4,3-b)pyridazine *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 464 mg/kg TOXIC EFFECTS : Behavioral - convulsions or effect on seizure threshold Behavioral - changes in motor activity (specific assay) Lungs, Thorax, or Respiration - respiratory stimulation REFERENCE : PHARAT Pharmazie. (VEB Verlag Volk und Gesundheit, Neue Gruenstr. 18, Berlin DDR-1020, Ger. Dem. Rep.) V.1- 1946- Volume(issue)/page/year: 34,801,1979 *** END OF RECORD ***