*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : YT3700000
CHEMICAL NAME           : Urea, 1-ethyl-2-thio-
CAS REGISTRY NUMBER     : 625-53-6
BEILSTEIN REFERENCE NO. : 1699551
REFERENCE               : 4-04-00-00374 (Beilstein Handbook Reference)
LAST UPDATED            : 199710
DATA ITEMS CITED        : 9
MOLECULAR FORMULA       : C3-H8-N2-S
MOLECULAR WEIGHT        : 104.19
WISWESSER LINE NOTATION : SUYZM2
COMPOUND DESCRIPTOR     : Mutagen
                          Reproductive Effector
SYNONYMS/TRADE NAMES :
   * Ethyl thiourea
   * 1-Ethylthiourea
 
                       *** 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           : 100 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   JPETAB Journal of Pharmacology and Experimental Therapeutics.  (Williams &
   Wilkins Co., 428 E. Preston St., Baltimore, MD 21202)  V.1-    1909/10-
   Volume(issue)/page/year: 90,260,1947
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TJADAB Teratology, The International Journal of Abnormal Development. (Alan
   R. Liss, Inc., 41 E. 11th St., New York, NY 10003)  V.1-    1968-
   Volume(issue)/page/year: 23,335,1981
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 500 mg/kg
SEX/DURATION            : female 12 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
   e.g., stunted fetus)
   Reproductive - Specific Developmental Abnormalities - Central Nervous System
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   TJADAB Teratology, The International Journal of Abnormal Development. (Alan
   R. Liss, Inc., 41 E. 11th St., New York, NY 10003)  V.1-    1968-
   Volume(issue)/page/year: 23,335,1981
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 1 gm/kg
SEX/DURATION            : female 12 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - craniofacial
   (including nose and tongue)
   Reproductive - Specific Developmental Abnormalities - gastrointestinal
   system
   Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
   TJADAB Teratology, The International Journal of Abnormal Development. (Alan
   R. Liss, Inc., 41 E. 11th St., New York, NY 10003)  V.1-    1968-
   Volume(issue)/page/year: 23,335,1981
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 150 ug/plate
REFERENCE :
   ABCHA6 Agricultural and Biological Chemistry.  (Maruzen Co. Ltd., POB 5050,
   Tokyo International, Tokyo 100-31, Japan)  V.25-    1961-
   Volume(issue)/page/year: 44,3017,1980
 
TYPE OF TEST            : DNA repair
TEST SYSTEM             : Microorganism - not otherwise specified
DOSE/DURATION           : 10 mg/plate
REFERENCE :
   BIZNAT Biologisches Zentralblatt.  (VEB Georg Thieme, Postfach 946, Leipzig
   DDR-7010, Ger. Dem. Rep.) V.1-    1881-  Volume(issue)/page/year:
   95,463,1976

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X4672
       No. of Facilities: 17 (estimated)
       No. of Industries: 1
       No. of Occupations: 3
       No. of Employees: 1031 (estimated)
       No. of Female Employees: 449 (estimated)

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

 
                            *** END OF RECORD ***