*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : UQ8710000 CHEMICAL NAME : 3-Pyrazolidinone, 4,4-dimethyl-1-phenyl- CAS REGISTRY NUMBER : 2654-58-2 LAST UPDATED : 199806 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C11-H14-N2-O SYNONYMS/TRADE NAMES : * 4,4-Dimethylphenidone * 4,4-Dimethyl-1-phenyl-3-pyrazolidinone * Dimezone * NSC 215239 *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 30 mg/kg TOXIC EFFECTS : Behavioral - somnolence (general depressed activity) Lungs, Thorax, or Respiration - cyanosis Gastrointestinal - hypermotility, diarrhea REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0533633 *** STATUS IN U.S. *** EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998 *** END OF RECORD ***