*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : KN7820000
CHEMICAL NAME           : Ether, 2,2-dichloro-1,1-difluoroethyl methyl
CAS REGISTRY NUMBER     : 76-38-0
BEILSTEIN REFERENCE NO. : 1737766
REFERENCE               : 4-02-00-00503 (Beilstein Handbook Reference)
LAST UPDATED            : 199710
DATA ITEMS CITED        : 34
MOLECULAR FORMULA       : C3-H4-Cl2-F2-O
MOLECULAR WEIGHT        : 164.97
WISWESSER LINE NOTATION : GYGXFFO1
COMPOUND DESCRIPTOR     : Tumorigen
                          Drug
                          Mutagen
                          Reproductive Effector
                          Human
                          Primary Irritant
SYNONYMS/TRADE NAMES :
   * Analgizer
   * Anecotan
   * 2,2-Dichloro-1,1-difluoroethyl methyl ether
   * Ethane, 2,2-dichloro-1,1-difluoro-1-methoxy-
   * Ingalan
   * Inhalan
   * Methoflurane
   * Methoxane
   * Methoxyfluran
   * Methoxyflurane
   * Metofane
   * Metoxfluran
   * Metoxifluran
   * NSC-110432
   * Penthrane
   * Pentran
   * Pentrane
 
                       *** HEALTH HAZARD DATA ***
 
                      ** SKIN/EYE IRRITATION DATA **
 
TYPE OF TEST            : Standard Draize test
ROUTE OF EXPOSURE       : Administration into the eye
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 100 mg
REACTION SEVERITY       : Moderate
REFERENCE :
   FEPRA7 Federation Proceedings, Federation of American Societies for
   Experimental Biology. (Bethesda, MD)  V.1-46, 1942-87.
   Volume(issue)/page/year: 35,729,1976
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Human
DOSE/DURATION           : 3500 ppm/1H
TOXIC EFFECTS :
   Kidney, Ureter, Bladder - renal function tests depressed
REFERENCE :
   CANJAE Canadian Anaesthetists' Society Journal.  (Toronto, Ont., Canada)
   V.1-33, 1954-86.  Volume(issue)/page/year: 21,294,1974
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 3600 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
   Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
   GKNT, 1982  Volume(issue)/page/year: -,53,1982
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 33500 mg/m3/4H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85GMAT "Toxicometric Parameters of Industrial Toxic Chemicals Under Single
   Exposure," Izmerov, N.F., et al., Moscow, Centre of International Projects,
   GKNT, 1982  Volume(issue)/page/year: -,53,1982
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 21500 mg/m3
TOXIC EFFECTS :
   Behavioral - general anesthetic
   Behavioral - somnolence (general depressed activity)
   Behavioral - excitement
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: 22(7),55,1978
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 150 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   USXXAM United States Patent Document.  (U.S. Patent Office, Box 9,
   Washington, DC 20231)  Volume(issue)/page/year: #4168308
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - species unspecified
DOSE/DURATION           : 3600 mg/kg
TOXIC EFFECTS :
   Behavioral - antipsychotic
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: 24(4),55,1980
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Mammal - species unspecified
DOSE/DURATION           : 34 gm/m3
TOXIC EFFECTS :
   Behavioral - antipsychotic
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: 24(4),55,1980
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 50 ppm/24H/14W-C
TOXIC EFFECTS :
   Liver - changes in liver weight
   Kidney, Ureter, Bladder - other changes in urine composition
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation,
   etc.)
REFERENCE :
   APTOA6 Acta Pharmacologica et Toxicologica.  (Copenhagen, Denmark)  V.1-59,
   1945-86.  For publisher information, see PHTOEH  Volume(issue)/page/year:
   57,176,1985
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 48600 mg/m3/4H/30D-I
TOXIC EFFECTS :
   Liver - other changes
REFERENCE :
   FATOAO Farmakologiya i Toksikologiya (Moscow).  For English translation, see
   PHTXA6 and RPTOAN. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.2-   
   1939-  Volume(issue)/page/year: 35,271,1972
 
                          ** REPRODUCTIVE DATA **
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 100 ppm/8H
SEX/DURATION            : female 1-21 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
   e.g., stunted fetus)
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   48,11,1978
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE                    : 400 ppm/8H
SEX/DURATION            : female 1-21 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   48,11,1978
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 2 ppm/4H
SEX/DURATION            : female 6-15 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Specific Developmental Abnormalities - urogenital system
REFERENCE :
   AACRAT Anesthesia and Analgesia (New York).  (Elsevier Science Pub. Co.,
   Inc., 52 Vanderbilt Ave., New York, NY 10017)  V.36-    1957-
   Volume(issue)/page/year: 59,421,1980
 
TYPE OF TEST            : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE                    : 2000 ppm/4H
SEX/DURATION            : female 6-15 day(s) after conception
TOXIC EFFECTS :
   Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death,
   e.g., stunted fetus)
   Reproductive - Specific Developmental Abnormalities - musculoskeletal system
REFERENCE :
   AACRAT Anesthesia and Analgesia (New York).  (Elsevier Science Pub. Co.,
   Inc., 52 Vanderbilt Ave., New York, NY 10017)  V.36-    1957-
   Volume(issue)/page/year: 59,421,1980
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Cytogenetic analysis
TEST SYSTEM             : Human Lymphocyte
DOSE/DURATION           : 200 ppm/24H
REFERENCE :
   ENVRAL Environmental Research.  (Academic Press, Inc., 1 E. First St.,
   Duluth, MN 55802) V.1-    1967-  Volume(issue)/page/year: 12,366,1976
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
ROUTE OF EXPOSURE       : Inhalation
TEST SYSTEM             : Rodent - rat
DOSE/DURATION           : 5000 ppm/3H (Continuous)
REFERENCE :
   EXPEAM Experientia.  (Birkhaeuser Verlag, POB 133, CH-4010 Basel,
   Switzerland)  V.1-    1945-  Volume(issue)/page/year: 35,71,1979
 
TYPE OF TEST            : Cytogenetic analysis
TEST SYSTEM             : Rodent - mouse Fibroblast
DOSE/DURATION           : 100 ppm
REFERENCE :
   ENVRAL Environmental Research.  (Academic Press, Inc., 1 E. First St.,
   Duluth, MN 55802) V.1-    1967-  Volume(issue)/page/year: 12,366,1976
 
TYPE OF TEST            : Mutation test systems - not otherwise specified
TEST SYSTEM             : Rodent - hamster Fibroblast
DOSE/DURATION           : 1 pph
REFERENCE :
   ANESAV Anesthesiology.  (Lippincott/Harper, Journal Fulfillment Dept., 2350
   Virginia Ave., Hagerstown, MD 21740)  V.1-    1940- Volume(issue)/page/year:
   43,21,1975
 
TYPE OF TEST            : Cytogenetic analysis
ROUTE OF EXPOSURE       : Parenteral
TEST SYSTEM             : Bird - chicken
DOSE/DURATION           : 10 mg
REFERENCE :
   ENVRAL Environmental Research.  (Academic Press, Inc., 1 E. First St.,
   Duluth, MN 55802) V.1-    1967-  Volume(issue)/page/year: 12,366,1976

                              *** REVIEWS ***
 
   IARC Cancer Review:Animal Inadequate Evidence
   IMSUDL IARC Monographs, Supplement.  (WHO Publications Centre USA, 49
   Sheridan Ave., Albany, NY 12210)  No.1-    1979-  Volume(issue)/page/year:
   7,93,1987

   TOXICOLOGY REVIEW
   ARPTDI Annual Review of Pharmacology and Toxicology.  (Annual Reviews, Inc.,
   POB 10139, Palo Alto, CA 94303)  V.16-    1976- Volume(issue)/page/year:
   16,67,1976

   TOXICOLOGY REVIEW
   KDYIA5 Kidney International.  (Springer-Verlag New York, Inc., Service
   Center, 44 Hartz Way, Secaucus Secaucus, NJ 07094)  V.1-    1972-
   Volume(issue)/page/year: 10,82,1976

   TOXICOLOGY REVIEW
   CANJAE Canadian Anaesthetists' Society Journal.  (Toronto, Ont., Canada)
   V.1-33, 1954-86.  Volume(issue)/page/year: 19,152,1972

   TOXICOLOGY REVIEW
   ARMCAH Annual Review of Medicine.  (Annual Reviews, Inc., POB 10139, Palo
   Alto, CA 94303) V.1-    1950-  Volume(issue)/page/year: 25,411,1974

   TOXICOLOGY REVIEW
   AACRAT Anesthesia and Analgesia (New York).  (Elsevier Science Pub. Co.,
   Inc., 52 Vanderbilt Ave., New York, NY 10017)  V.36-    1957-
   Volume(issue)/page/year: 57,328,1978

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-DENMARK:TWA 2 ppm (14 mg/m3) JAN 1993
   
   OEL-RUSSIA:STEL 200 mg/m3 JAN 1993

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

NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
   NIOSH REL TO METHOXYFLURANE-air:CL 2 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 - 82904
       No. of Facilities: 627 (estimated)
       No. of Industries: 2
       No. of Occupations: 6
       No. of Employees: 8095 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 82904
       No. of Facilities: 2120 (estimated)
       No. of Industries: 2
       No. of Occupations: 14
       No. of Employees: 32772 (estimated)
       No. of Female Employees: 18210 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Negative: Sperm morphology-mouse
   
   EPA GENETOX PROGRAM 1988, Inconclusive: Histidine reversion-Ames test
   
   EPA TSCA Section 8(d) unpublished health/safety studies
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***