*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : TE4550000
CHEMICAL NAME           : Phosphorodithioic acid, S,S'-methylene
                          O,O,O',O'-tetraethyl ester
CAS REGISTRY NUMBER     : 563-12-2
BEILSTEIN REFERENCE NO. : 1804530
REFERENCE               : 4-01-00-03093 (Beilstein Handbook Reference)
LAST UPDATED            : 199712
DATA ITEMS CITED        : 35
MOLECULAR FORMULA       : C9-H22-O4-P2-S4
MOLECULAR WEIGHT        : 384.49
WISWESSER LINE NOTATION : 2OPS&O2&S1SPS&O2&O2
COMPOUND DESCRIPTOR     : Agricultural Chemical
                          Mutagen
                          Human
SYNONYMS/TRADE NAMES :
   * Bis(S-(diethoxyphosphinothioyl)mercapto)methane
   * Diethion
   * Embathion
   * ENT 24,105
   * Ethanox
   * Ethiol 100
   * Ethion
   * Ethodan
   * Ethopaz
   * Ethyl methylene phosphorodithioate
   * FMC-1240
   * Fosfatox E
   * Fosfono 50
   * Hylemox
   * KWIT
   * Methyleen-S,S'-bis(O,O-diethyl-dithiofosfaat)
   * S,S'-Methylen-bis(O,O-diaethyl-dithiophosphat)
   * Methylene-S,S'-bis(O,O-diaethyl-dithiophosphat)
   * S,S'-Methylene O,O,O',O'-tetraethyl phosphorodithioate
   * NIA 1240
   * Niagara 1240
   * Nialate
   * Phosphorodithioic acid, O,O-diethyl ester, S,S-diester with  
   methanedithiol
   * Phosphotox E
   * Rhodocide
   * Rodocid
   * RP 8167
   * O,O,O',O'-Tetraaethyl-bis(dithiophosphat)
   * O,O,O',O'-Tetraethyl S,S'-methylenebisphosphordithioate
   * O,O,O',O'-Tetraethyl-S,S'-methylenebisphosphorodithioate
   * Tetraethyl S,S'-methylene bis(phosphorothiolothionate)
   * O,O,O',O'-Tetraethyl S,S'-methylene di(phosphorodithioate)
   * Vegfru fosmite
 
                       *** HEALTH HAZARD DATA ***
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human - infant
DOSE/DURATION           : 15700 ug/kg
TOXIC EFFECTS :
   Peripheral Nerve and Sensation - flaccid paralysis without anesthesia
   (usually neuromuscular blockage)
   Behavioral - changes in motor activity (specific assay)
   Nutritional and Gross Metabolic - body temperature increase
REFERENCE :
   TXMDAX Texas Medicine.  (Texas Medical Assoc., 1801 N. Lamar Blvd., Austin,
   TX 78701)  V.60-    1964-  Volume(issue)/page/year: 63,71,1967
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Human
DOSE/DURATION           : 100 ug/kg
TOXIC EFFECTS :
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   22,286,1972
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 13 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PHJOAV Pharmaceutical Journal.  (Pharmaceutical Soc. of Great Britain, 1
   Lambeth High St., London, SE1 7JN, UK)  V.131-    1933-
   Volume(issue)/page/year: 185,361,1960
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 864 mg/m3
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   FMCHA2 Farm Chemicals Handbook.  (Meister Pub., 37841 Euclid Ave.,
   Willoughy, OH 44094)  Volume(issue)/page/year: -,C128,1991
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 62 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   14,515,1969
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 26 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PSEBAA Proceedings of the Society for Experimental Biology and Medicine.
   (Academic Press, Inc., 1 E. First St., Duluth, MN 55802)  V.1-    1903/04-
   Volume(issue)/page/year: 129,699,1968
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Unreported
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 55 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   30ZDA9 "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag
   New York, Inc., 1971  Volume(issue)/page/year: -,367,1971
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 40 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85DPAN "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel,"
   Perkow, W., Berlin, Verlag Paul Parey, 1971-1976  Volume(issue)/page/year:
   -,-,1971/1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 35 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   PSEBAA Proceedings of the Society for Experimental Biology and Medicine.
   (Academic Press, Inc., 1 E. First St., Duluth, MN 55802)  V.1-    1903/04-
   Volume(issue)/page/year: 129,699,1968
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 40 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85DPAN "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel,"
   Perkow, W., Berlin, Verlag Paul Parey, 1971-1976  Volume(issue)/page/year:
   -,-,1971/1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 915 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   85DPAN "Wirksubstanzen der Pflanzenschutz und Schadlingsbekampfungsmittel,"
   Perkow, W., Berlin, Verlag Paul Parey, 1971-1976  Volume(issue)/page/year:
   -,-,1971/1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Bird - wild bird species
DOSE/DURATION           : 45 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TXAPA9 Toxicology and Applied Pharmacology.  (Academic Press, Inc., 1 E.
   First St., Duluth, MN 55802) V.1-    1959-  Volume(issue)/page/year:
   21,315,1972
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 675 mg/kg/90D-C
TOXIC EFFECTS :
   Blood - other changes
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 8,173,1988
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 182 mg/kg/1Y-C
TOXIC EFFECTS :
   Blood - other changes
   Biochemical - Enzyme inhibition, induction, or change in blood or tissue
   levels - true cholinesterase
REFERENCE :
   TOXID9 Toxicologist.  (Soc. of Toxicology, Inc., 475 Wolf Ledge Parkway,
   Akron, OH 44311) V.1-    1981-  Volume(issue)/page/year: 8,173,1988

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.4 mg/m3 (skin)
   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

   TOXICOLOGY REVIEW
   AQMOAC Air Quality Monographs.  (Washington, DC)  No.69-1 - No.75-25,
   1969-75(?).  Discontinued.  Volume(issue)/page/year: #73-19,1973

   TOXICOLOGY REVIEW
   DTTIAF Deutsche Tieraerztliche Wochenschrift.  (Hanover, Fed. Rep. Ger.)
   V.1-77, 1893-1970.  Volume(issue)/page/year: 80,485,1973

   TOXICOLOGY REVIEW
   RREVAH Residue Reviews.  (Springer-Verlag New York, Inc., Service Center, 44
   Hartz Way, Secaucus, NJ 07094)  V.1-    1962-  Volume(issue)/page/year:
   63,1,1976

                    *** 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

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 0.4 mg/m3;Skin JAN 1993
   
   OEL-BELGIUM:TWA 0.4 mg/m3;Skin JAN 1993
   
   OEL-FRANCE:TWA 0.4 mg/m3;Skin JAN 1993
   
   OEL-THE NETHERLANDS:TWA 0.4 mg/m3;Skin JAN 1993
   
   OEL-SWITZERLAND:TWA 0.4 mg/m3 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 ETHION-air:10H TWA 0.4 mg/m3 (Sk)
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 - 84542
       No. of Facilities: 12 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 72 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA GENETOX PROGRAM 1988, Negative: Histidine reversion-Ames test
   
   EPA GENETOX PROGRAM 1988, Negative: In vitro UDS-human fibroblast; TRP
   reversion
   
   EPA GENETOX PROGRAM 1988, Negative: S cerevisiae-homozygosis
   
   EPA GENETOX PROGRAM 1988, Inconclusive: B subtilis rec assay; E coli polA
   without S9
   
   On EPA IRIS database
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
   
   NIOSH Analytical Method, 1994: Organophosphorus pesticides, 5600

 
                            *** END OF RECORD ***