*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : MU0686000
CHEMICAL NAME           : Hydantoin, 1,3-dibromo-5,5-dimethyl-
CAS REGISTRY NUMBER     : 77-48-5
BEILSTEIN REFERENCE NO. : 0146024
REFERENCE               : 5-24-05-00374 (Beilstein Handbook Reference)
LAST UPDATED            : 199710
DATA ITEMS CITED        : 8
MOLECULAR FORMULA       : C5-H6-Br2-N2-O2
MOLECULAR WEIGHT        : 285.95
WISWESSER LINE NOTATION : T5NVNV EHJ AE CE E1 E1
SYNONYMS/TRADE NAMES :
   * Dibromantin
   * Dibromantine
   * N,N'-Dibromodimethylhydantoin
   * 1,3-Dibromo-5,5-dimethyl-2,4-imidazolidinedione
   * 2,4-Imidazolidinedione, 1,3-dibromo-5,5-dimethyl-
 
                       *** 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           : 250 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 36(10),108,1971
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 29 gm/m3/1H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   EPASR* United States Environmental Protection Agency, Office of Pesticides
   and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW,
   Washington, DC 20460)  History unknown.  Volume(issue)/page/year:
   8EHQ-0281-0382
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 20 gm/kg
TOXIC EFFECTS :
   Sense Organs and Special Senses (Olfaction) - effect, not otherwise
   specified
   Behavioral - somnolence (general depressed activity)
   Skin and Appendages - hair
REFERENCE :
   EPASR* United States Environmental Protection Agency, Office of Pesticides
   and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW,
   Washington, DC 20460)  History unknown.  Volume(issue)/page/year:
   8EHQ-0581-0382
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 52 mg/kg/17W-I
TOXIC EFFECTS :
   Endocrine - evidence of thyroid hypofunction
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 36(10),108,1971

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION
   FEREAC Federal Register.  (U.S. Government Printing Office, Supt. of
   Documents, Washington, DC 20402) V.1-    1936-  Volume(issue)/page/year:
   54,7740,1989

         *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 83854
       No. of Facilities: 21 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 124 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***