*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : HQ3490550
CHEMICAL NAME           : Dibenzothiophene
CAS REGISTRY NUMBER     : 132-65-0
LAST UPDATED            : 199710
DATA ITEMS CITED        : 7
MOLECULAR FORMULA       : C12-H8-S
MOLECULAR WEIGHT        : 184.26
SYNONYMS/TRADE NAMES :
   * 2,2'-Biphenylylene sulfide
   * Dibenzo(b,d)thiophene
   * Diphenylene sulfide
   * 9-Thiafluorene
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 470 mg/kg
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - coma
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   12,787,1989
 
TYPE OF TEST            : LD - Lethal dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : >500 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   CBCCT* "Summary Tables of Biological Tests," National Research Council
   Chemical-Biological Coordination Center.  (National Academy of Science
   Library, 2101 Constitution Ave., NW, Washington, DC 20418)
   Volume(issue)/page/year: 4,378,1952
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 7480 mg/kg/24W-I
TOXIC EFFECTS :
   Liver - fatty liver degeneration
   Liver - changes in liver weight
   Endocrine - changes in spleen weight
REFERENCE :
   FOREAE Food Research.  (Champaign, IL)  V.1-25, 1936-60.  For publisher
   information, see JFDSAZ.  Volume(issue)/page/year: 7,161,1942

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - X4832
       No. of Facilities: 7 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 28 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***