*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YT4760000
CHEMICAL NAME           : Urea, 1-hexyl-1-nitroso-
CAS REGISTRY NUMBER     : 18774-85-1
BEILSTEIN REFERENCE NO. : 2963800
LAST UPDATED            : 199712
DATA ITEMS CITED        : 8
MOLECULAR FORMULA       : C7-H15-N3-O2
MOLECULAR WEIGHT        : 173.25
WISWESSER LINE NOTATION : ZVN6&NO
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * 1-Hexyl-1-nitrosourea
   * Nitroso-n-hexylurea
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 550 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Cardiac - tumors
   Gastrointestinal - tumors
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
   Volume(issue)/page/year: 381,250,1982
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 410 mg/kg
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent by RTECS criteria
   Skin and Appendages - tumors
   Peripheral Nerve and Sensation - structural change in nerve or sheath
REFERENCE :
   ANYAA9 Annals of the New York Academy of Sciences.  (New York Academy of
   Sciences, 2 E. 63rd St., New York, NY 10021)  V.1-    1877-
   Volume(issue)/page/year: 381,250,1982
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 17325 ug/kg/50W-I
TOXIC EFFECTS :
   Tumorigenic - Carcinogenic by RTECS criteria
   Skin and Appendages - tumors
REFERENCE :
   JCROD7 Journal of Cancer Research and Clinical Oncology.  (Springer-Verlag
   New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094)  V.93-
   1979-  Volume(issue)/page/year: 114,245,1988
 
TYPE OF TEST            : TD - Toxic dose (other than lowest)
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 693 mg/kg/50W-I
TOXIC EFFECTS :
   Tumorigenic - Carcinogenic by RTECS criteria
   Skin and Appendages - tumors
REFERENCE :
   JCROD7 Journal of Cancer Research and Clinical Oncology.  (Springer-Verlag
   New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ 07094)  V.93-
   1979-  Volume(issue)/page/year: 102,13,1981
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 10 ug/plate
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 178,157,1987
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 10 ug/plate
REFERENCE :
   TCMUE9 Topics in Chemical Mutagenesis.  (Plenum Pub. Corp., 233 Spring
   Street, New York, NY 10013) V.1-    1984-  Volume(issue)/page/year:
   1,13,1984
 
TYPE OF TEST            : Phage inhibition capacity
TEST SYSTEM             : Bacteria - Escherichia coli
DOSE/DURATION           : 250 mg/L
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 178,157,1987

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Positive: Histidine reversion-Ames test

 
                            *** END OF RECORD ***