*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : LU5950000
CHEMICAL NAME           : Furan, tetrahydro-
CAS REGISTRY NUMBER     : 109-99-9
LAST UPDATED            : 199712
DATA ITEMS CITED        : 51
MOLECULAR FORMULA       : C4-H8-O
MOLECULAR WEIGHT        : 72.12
WISWESSER LINE NOTATION : T5OTJ
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
                          Reproductive Effector
                          Human
SYNONYMS/TRADE NAMES :
   * Agrisynth THF
   * Butane, 1,4-epoxy-
   * Butane, alpha,delta-oxide
   * Cyclotetramethylene oxide
   * Diethylene oxide
   * 1,4-Epoxybutane
   * Furanidine
   * NCI-C60560
   * Oxacyclopentane
   * Oxolane
   * RCRA waste number U213
   * Tetrahydrofuraan
   * Tetrahydrofuran
   * Tetrahydrofuranne
   * Tetraidrofurano
   * Tetramethylene oxide
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Human
DOSE/DURATION           : 25000 ppm
TOXIC EFFECTS :
   Behavioral - general anesthetic
REFERENCE :
   34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York,
   Academic Press, Inc., 1969  Volume(issue)/page/year: -,580,1969
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1650 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   GAFCC* GAF Material Safety Data Sheet.  (GAF Chemicals Corporation, 1361
   Alps Road,  Wayne, NJ 07470)
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 21000 ppm/3H
TOXIC EFFECTS :
   Behavioral - sleep
   Lungs, Thorax, or Respiration - respiratory stimulation
   Gastrointestinal - nausea or vomiting
REFERENCE :
   SSEIBV Sumitomo Sangyo Eisei.  Sumitomo Industrial Health.  (Sumitomo Byoin
   Sangyo Eisei Kenkyushitsu, 5-2-2, Nakanoshima, Kita-ku, Osaka 530, Japan)
   No.1-    1965-  Volume(issue)/page/year: 20,141,1984
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2900 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   SAIGBL Sangyo Igaku.  Japanese Journal of Industrial Health.  (Nippon Sangyo
   Eisei Igakkai, Kosu Eisei Bldg., 1-29-8, Shinjuku, Shinjuku-ku, Tokyo 160,
   Japan)  V.1-    1959-  Volume(issue)/page/year: 24,373,1982
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 24000 mg/m3/2H
TOXIC EFFECTS :
   Behavioral - somnolence (general depressed activity)
   Behavioral - muscle weakness
   Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
   TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
   Toxicology of New Industrial Chemical Substances.  For English translation,
   see TNICS*.  (Izdatel'stvo Meditsina, Moscow, USSR)  No.1-    1961-
   Volume(issue)/page/year: 5,21,1963
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1900 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   SAIGBL Sangyo Igaku.  Japanese Journal of Industrial Health.  (Nippon Sangyo
   Eisei Igakkai, Kosu Eisei Bldg., 1-29-8, Shinjuku, Shinjuku-ku, Tokyo 160,
   Japan)  V.1-    1959-  Volume(issue)/page/year: 24,373,1982
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 2300 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: 34(9),114,1969
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 500 mg/kg
TOXIC EFFECTS :
   Liver - fatty liver degeneration
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   35,21,1974
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 4550 mg/kg/17W-I
TOXIC EFFECTS :
   Blood - change in clotting factors
   Blood - changes in leukocyte (WBC) count
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 32(2),99,1967
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 1000 ppm/4H/12W-I
TOXIC EFFECTS :
   Sense Organs and Special Senses (Olfaction) - deviated nasal septum
REFERENCE :
   SEEIAY Seikatsu Eisei.  Living and Health.  (Osaka Seikatsu Eisei Kyokai,
   c/o Osaka-shiritsu Kankyo Kagaku Kenkyusho, 8-34 Tojo-cho, Tennoji-ku,
   Osaka, 543, Japan)  V.1-    1957-  Volume(issue)/page/year: 25,176,1981
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 5000 ppm/6H/91D-I
TOXIC EFFECTS :
   Endocrine - changes in spleen weight
   Endocrine - changes in thymus weight
   Blood - changes in erythrocyte (RBC) count
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   14,338,1990
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 200 ppm/6H/18W-I
TOXIC EFFECTS :
   Liver - other changes
   Musculoskeletal - other changes
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - multiple enzyme effects
REFERENCE :
   APTOA6 Acta Pharmacologica et Toxicologica.  (Copenhagen, Denmark)  V.1-59,
   1945-86.  For publisher information, see PHTOEH  Volume(issue)/page/year:
   54,221,1984
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 4550 mg/kg/17W-I
TOXIC EFFECTS :
   Blood - change in clotting factors
   Blood - changes in leukocyte (WBC) count
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   GISAAA Gigiena i Sanitariya.  For English translation, see HYSAAV.  (V/O
   Mezhdunarodnaya Kniga, 113095 Moscow, USSR)  V.1-    1936-
   Volume(issue)/page/year: 32(2),99,1967
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 5000 ppm/6H/91D-I
TOXIC EFFECTS :
   Liver - changes in liver weight
   Endocrine - adrenal cortex hypoplasia
   Endocrine - changes in thymus weight
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   14,338,1990
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 8 gm/m3/2H/60D-I
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - other changes
   Related to Chronic Data - death
REFERENCE :
   TPKVAL Toksikologiya Novykh Promyshlennykh Khimicheskikh Veshchestv.
   Toxicology of New Industrial Chemical Substances.  For English translation,
   see TNICS*.  (Izdatel'stvo Meditsina, Moscow, USSR)  No.1-    1961-
   Volume(issue)/page/year: 5,21,1963
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 5000 ppm/6H
SEX/DURATION            : female 6-19 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
   e.g., stunted fetus)
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   18,255,1992
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 1800 ppm/6H
SEX/DURATION            : female 6-17 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Fertility - post-implantation mortality (e.g. dead and/or
   resorbed implants per total number of implants)
REFERENCE :
   FAATDF Fundamental and Applied Toxicology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1981-  Volume(issue)/page/year:
   18,255,1992
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Escherichia coli
DOSE/DURATION           : 1 umol/L
REFERENCE :
   GTPZAB Gigiena Truda i Professional'nye Zabolevaniya.  Labor Hygiene and
   Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR)
   V.1-36, 1957-1992. For publisher information, see MTPEEI
   Volume(issue)/page/year: 26(1),43,1982

                              *** REVIEWS ***
 
   ACGIH TLV-STEL 737 mg/m3 (250 ppm)
   DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
   (BEIs) booklet issues by American Conference of Governmental Industrial
   Hygienists (ACGIH), Cincinnati, OH, 1996  Volume(issue)/page/year:
   TLV/BEI,1997

   ACGIH TLV-TWA 590 mg/m3 (200 ppm)
   DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
   (BEIs) booklet issues by American Conference of Governmental Industrial
   Hygienists (ACGIH), Cincinnati, OH, 1996  Volume(issue)/page/year:
   TLV/BEI,1997

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   MSHA STANDARD-air:TWA 200 ppm (590 mg/m3)
   DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
   (BEIs) booklet issues by American Conference of Governmental Industrial
   Hygienists (ACGIH), Cincinnati, OH, 1996  Volume(issue)/page/year:
   3,252,1971

   OSHA PEL (Gen Indu):8H TWA 200 ppm (590 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1910.1000,1994

   OSHA PEL (Construc):8H TWA 200 ppm (590 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1926.55,1994

   OSHA PEL (Shipyard):8H TWA 200 ppm (590 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   29,1915.1000,1993

   OSHA PEL (Fed Cont):8H TWA 200 ppm (590 mg/m3)
   CFRGBR Code of Federal Regulations.  (U.S. Government Printing Office, Supt.
   of Documents, Washington, DC 20402)  Volume(issue)/page/year:
   41,50-204.50,1994

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 200 ppm (590 mg/m3);STEL 250 ppm (735 mg/m3) JAN 1993
   
   OEL-BELGIUM:TWA 200 ppm (590 mg/m3);STEL 250 ppm (738 mg/m3) JAN 1993
   
   OEL-DENMARK:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-FINLAND:TWA 100 ppm (290 mg/m3);STEL 150 ppm (440 mg/m3) JAN 1993
   
   OEL-FRANCE:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-GERMANY:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-HUNGARY:TWA 200 mg/m3;STEL 400 mg/m3 JAN 1993
   
   OEL-JAPAN:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-THE NETHERLANDS:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-THE PHILIPPINES:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-RUSSIA:TWA 200 ppm;STEL 100 mg/m3 JAN 1993
   
   OEL-SWEDEN:TWA 100 ppm (300 mg/m3);STEL 150 ppm (450 mg/m3) JAN 1993
   
   OEL-SWITZERLAND:TWA 200 ppm (590 mg/m3);STEL 1000 ppm JAN 1993
   
   OEL-TURKEY:TWA 200 ppm (590 mg/m3) JAN 1993
   
   OEL-UNITED KINGDOM:TWA 200 ppm (590 mg/m3);STEL 250 ppm JAN 1993
   
   OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
   
   OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV

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

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO TETRAHYDROFURAN-air:10H TWA 200 ppm;STEL 250 ppm
REFERENCE :
   NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
   Health, Education, and Welfare, Reports and Memoranda.
   Volume(issue)/page/year: DHHS #92-100,1992

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 71695
       No. of Facilities: 4141 (estimated)
       No. of Industries: 72
       No. of Occupations: 60
       No. of Employees: 95003 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 71695
       No. of Facilities: 17866 (estimated)
       No. of Industries: 101
       No. of Occupations: 83
       No. of Employees: 356038 (estimated)
       No. of Female Employees: 47382 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   On EPA IRIS database
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
   
   NIOSH Analytical Method, 1994: Tetrahydrofuran, 1609
   
   NTP Carcinogenesis studies; test completed (post peer review), October 1997

 
                            *** END OF RECORD ***