*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YS3880000
CHEMICAL NAME           : Urea, 1-sec-butyl-1-nitroso-
CAS REGISTRY NUMBER     : 71752-66-4
BEILSTEIN REFERENCE NO. : 4376424
LAST UPDATED            : 199612
DATA ITEMS CITED        : 3
MOLECULAR FORMULA       : C5-H11-N3-O2
MOLECULAR WEIGHT        : 145.19
WISWESSER LINE NOTATION : ZVNNO&Y2&1
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
SYNONYMS/TRADE NAMES :
   * 1-sec-Butyl-1-nitrosourea
   * Nitroso-sec-butylurea
 
                       *** HEALTH HAZARD DATA ***
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 585 mg/kg/50W-I
TOXIC EFFECTS :
   Tumorigenic - equivocal tumorigenic agent 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           : 100 ug/plate
REFERENCE :
   MUREAV Mutation Research.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1964-  Volume(issue)/page/year: 68,1,1979
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 500 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
 
                            *** END OF RECORD ***