*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YR6825000
CHEMICAL NAME           : Urea, 1-acetyl-3-ethylnitroso-
CAS REGISTRY NUMBER     : 52217-47-7
LAST UPDATED            : 199012
DATA ITEMS CITED        : 2
MOLECULAR FORMULA       : C5-H9-N3-O3
MOLECULAR WEIGHT        : 159.17
WISWESSER LINE NOTATION : ONN2&VMV1
COMPOUND DESCRIPTOR     : Tumorigen
SYNONYMS/TRADE NAMES :
   * N'-Acetyl ethylnitrosourea
 
                       *** 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           : 550 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PPTCBY Proceedings of the International Symposium of the Princess Takamatsu
   Cancer Research Fund. (Japan Scientific Soc. Press, 6-2-10 Hongo, Bunkyo-ku,
   Tokyo 113, Japan)  1st-    1971-  Volume(issue)/page/year: 2,73,1972
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 520 mg/kg/1Y-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Gastrointestinal - tumors
   Skin and Appendages - tumors
REFERENCE :
   PPTCBY Proceedings of the International Symposium of the Princess Takamatsu
   Cancer Research Fund. (Japan Scientific Soc. Press, 6-2-10 Hongo, Bunkyo-ku,
   Tokyo 113, Japan)  1st-    1971-  Volume(issue)/page/year: 2,73,1972
 
                            *** END OF RECORD ***