*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : SZ7710000
CHEMICAL NAME           : Phosphonic acid, dimethyl ester
CAS REGISTRY NUMBER     : 868-85-9
LAST UPDATED            : 199710
DATA ITEMS CITED        : 30
MOLECULAR FORMULA       : C2-H7-O3-P
MOLECULAR WEIGHT        : 110.06
WISWESSER LINE NOTATION : 1OPHO&O1
COMPOUND DESCRIPTOR     : Tumorigen
                          Mutagen
                          Primary Irritant
SYNONYMS/TRADE NAMES :
   * Bis(hydroxymethyl)phosphine oxide
   * Dimethoxyphosphine oxide
   * Dimethyl acid phosphite
   * Dimethylester kyseliny fosforite
   * Dimethylfosfit
   * Dimethylfosfonat
   * Dimethylhydrogenphosphite
   * Dimethyl hydrogen phosphonate
   * Dimethyl phosphite
   * Dimethyl phosphonate
   * Dimethyl phosphorous acid
   * Hydrogen dimethyl phosphite
   * NCI-C54773
   * Phosphorous acid dimethyl ester
 
                       *** HEALTH HAZARD DATA ***
 
                      ** SKIN/EYE IRRITATION DATA **
 
TYPE OF TEST            : Standard Draize test
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 500 mg/24H
REACTION SEVERITY       : Mild
REFERENCE :
   85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
   Prague, Czechoslovakia, Avicenum, 1986  Volume(issue)/page/year: -,1115,1986
 
TYPE OF TEST            : Standard Draize test
ROUTE OF EXPOSURE       : Administration into the eye
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 20 mg/24H
REACTION SEVERITY       : Moderate
REFERENCE :
   85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J.,
   Prague, Czechoslovakia, Avicenum, 1986  Volume(issue)/page/year: -,1115,1986
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 3040 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : >20 gm/m3
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ALBRW* Albright & Wilson Inc.  (P.O. Box 26229, Richmond, VA 23260-6229)
   Volume(issue)/page/year: #OPB-3,1984
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 2970 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
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: 36(4),22,1992
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 1831 mg/kg
TOXIC EFFECTS :
   Autonomic Nervous System - other (direct) parasympathomimetic
   Lungs, Thorax, or Respiration - respiratory stimulation
   Gastrointestinal - changes in structure or function of salivary glands
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: 36(4),22,1992
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Subcutaneous
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 2610 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
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: 36(4),22,1992
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 2400 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   ALBRW* Albright & Wilson Inc.  (P.O. Box 26229, Richmond, VA 23260-6229)
   Volume(issue)/page/year: #OPB-3,1984
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 900 mg/kg
TOXIC EFFECTS :
   Autonomic Nervous System - other (direct) parasympathomimetic
   Lungs, Thorax, or Respiration - respiratory stimulation
   Gastrointestinal - changes in structure or function of salivary glands
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: 36(4),22,1992
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 7500 mg/kg/15D-I
TOXIC EFFECTS :
   Behavioral - somnolence (general depressed activity)
   Related to Chronic Data - death
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 26 gm/kg/13W-I
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - corneal damage
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
   Related to Chronic Data - death
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 30 gm/kg/15D-I
TOXIC EFFECTS :
   Related to Chronic Data - death
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 97500 mg/kg/13W-I
TOXIC EFFECTS :
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Related to Chronic Data - death
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
                          ** TUMORIGENIC DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 103 gm/kg/2Y-I
TOXIC EFFECTS :
   Tumorigenic - Carcinogenic by RTECS criteria
   Lungs, Thorax, or Respiration - tumors
   Gastrointestinal - tumors
REFERENCE :
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,1985
 
                            ** MUTATION DATA **
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Bacteria - Salmonella typhimurium
DOSE/DURATION           : 7500 ug/plate
REFERENCE :
   ENMUDM Environmental Mutagenesis.  (New York, NY)  V.1-9, 1979-87.  For
   publisher information, see EMMUEG.  Volume(issue)/page/year: 8(Suppl
   7),1,1986
 
TYPE OF TEST            : Micronucleus test
ROUTE OF EXPOSURE       : Intraperitoneal
TEST SYSTEM             : Rodent - mouse
DOSE/DURATION           : 1500 mg/kg/3D (Continuous)
REFERENCE :
   EMMUEG Environmental and Molecular Mutagenesis.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.10-    1987-  Volume(issue)/page/year:
   21,160,1993
 
TYPE OF TEST            : Mutation in microorganisms
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 1700 mg/L
REFERENCE :
   SCIEAS Science.  (American Assoc. for the Advancement of Science, 1333 H
   St., NW, Washington, DC 20005)  V.1-    1895-  Volume(issue)/page/year:
   236,933,1987
 
TYPE OF TEST            : Mutation in mammalian somatic cells
TEST SYSTEM             : Rodent - mouse Lymphocyte
DOSE/DURATION           : 2100 mg/L
REFERENCE :
   EMMUEG Environmental and Molecular Mutagenesis.  (Alan R. Liss, Inc., 41 E.
   11th St., New York, NY 10003)  V.10-    1987-  Volume(issue)/page/year:
   11,91,1988
 
TYPE OF TEST            : Cytogenetic analysis
TEST SYSTEM             : Rodent - hamster Ovary
DOSE/DURATION           : 1600 mg/L
REFERENCE :
   SCIEAS Science.  (American Assoc. for the Advancement of Science, 1333 H
   St., NW, Washington, DC 20005)  V.1-    1895-  Volume(issue)/page/year:
   236,933,1987
 
TYPE OF TEST            : Sister chromatid exchange
TEST SYSTEM             : Rodent - hamster Ovary
DOSE/DURATION           : 250 mg/L
REFERENCE :
   SCIEAS Science.  (American Assoc. for the Advancement of Science, 1333 H
   St., NW, Washington, DC 20005)  V.1-    1895-  Volume(issue)/page/year:
   236,933,1987

                              *** REVIEWS ***
 
   IARC Cancer Review:Animal Limited Evidence
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 48,85,1990

   IARC Cancer Review:Group 3
   IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
   to Man.  (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
   V.1-    1972-  Volume(issue)/page/year: 48,85,1990

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-GERMANY;Carcinogen JAN 1993

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

NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
   NOHS - National Occupational Hazard Survey (1974)
     NOHS Hazard Code - 84136
       No. of Facilities: 21 (estimated)
       No. of Industries: 1
       No. of Occupations: 2
       No. of Employees: 41 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 84136
       No. of Facilities: 7 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 1822 (estimated)
       No. of Female Employees: 272 (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
   
   NTP Carcinogenesis Studies (gavage);clear evidence:rat
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,85

   NTP Carcinogenesis Studies (gavage);no evidence:mouse
   NTPTR* National Toxicology Program Technical Report Series.  (Research
   Triangle Park, NC 27709) No.206-  Volume(issue)/page/year: NTP-TR-287,85

 
                            *** END OF RECORD ***