*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : YS4980000 CHEMICAL NAME : Urea, 1-(2-chloroethyl)-3-(2-fluoroethyl)-1-nitroso- mixed with 3-(2-chloroethyl)-1-(2- fluoroethyl)-1-nitrosourea (1:1) CAS REGISTRY NUMBER : 50922-87-7 OTHER CAS REGISTRY NOS. : 72361-30-9 LAST UPDATED : 199206 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C5-H9-Cl-F-N3-O2 MOLECULAR WEIGHT : 197.62 WISWESSER LINE NOTATION : ONN2GVM2F &ONN2FVM2G COMPOUND DESCRIPTOR : Drug SYNONYMS/TRADE NAMES : * N-(2-Chloroethyl)-N'-(2-fluoroethyl)nitrosourea * NSC 93184 * Urea, N-(2-chloroethyl)-N'-(2-fluoroethyl)nitroso- *** 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 : 41470 ug/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NCISP* National Cancer Institute Screening Program Data Summary, Developmental Therapeutics Program. (Bethesda, MD 20205) Volume(issue)/page/year: JAN1986 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 26900 ug/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NCISP* National Cancer Institute Screening Program Data Summary, Developmental Therapeutics Program. (Bethesda, MD 20205) Volume(issue)/page/year: JAN1986 *** END OF RECORD ***