*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UR0393500 CHEMICAL NAME : 3H-Pyrazol-3-one, 2,4-dihydro-5-amino-2-phenyl- CAS REGISTRY NUMBER : 4149-06-8 BEILSTEIN REFERENCE NO. : 0153681 LAST UPDATED : 199612 DATA ITEMS CITED : 1 MOLECULAR FORMULA : C9-H9-N3-O MOLECULAR WEIGHT : 175.21 SYNONYMS/TRADE NAMES : * 2,4-Dihydro-5-amino-2-phenyl-3H-pyrazol-3-one * 5-Pyrazolone, 3-amino-1-phenyl- *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD - Lethal dose ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : >500 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : CBCCT* "Summary Tables of Biological Tests," National Research Council Chemical-Biological Coordination Center. (National Academy of Science Library, 2101 Constitution Ave., NW, Washington, DC 20418) Volume(issue)/page/year: 5,340,1953 *** END OF RECORD ***