*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER            : OP1450000
CHEMICAL NAME           : Manganese, tricarbonyl methylcyclopentadienyl
CAS REGISTRY NUMBER     : 12108-13-3
LAST UPDATED            : 199712
DATA ITEMS CITED        : 38
MOLECULAR FORMULA       : C9-H7-Mn-O3
MOLECULAR WEIGHT        : 218.10
WISWESSER LINE NOTATION : L5J A1-MN-VHVHVH
COMPOUND DESCRIPTOR     : Organometallic
                          Primary Irritant
SYNONYMS/TRADE NAMES :
   * AK-33X
   * Antiknock-33
   * CI-2
   * Combustion improver -2
   * Manganese, (methylcyclopentadienyl)tricarbonyl-
   * Methylcyclopentadienyl manganese tricarbonyl
   * 2-Methylcyclopentadienyl manganese tricarbonyl
   * Methylcyklopentadientrikarbonylmanganium
   * MMT
   * Tricarbonyl(methylcyclopentadienyl)manganese
 
                       *** 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           : 100 mg/24H
REACTION SEVERITY       : Mild
REFERENCE :
   AEHLAU Archives of Environmental Health.  (Heldref Pub., 4000 Albemarle St.,
   NW, Washington, DC 20016)  V.1-    1960-  Volume(issue)/page/year:
   30,168,1975
 
                        ** ACUTE TOXICITY DATA **
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 8 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 76 mg/m3/4H
TOXIC EFFECTS :
   Sense Organs and Special Senses (Eye) - conjunctive irritation
   Behavioral - somnolence (general depressed activity)
   Lungs, Thorax, or Respiration - dyspnea
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   40,164,1979
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 665 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - rat
DOSE/DURATION           : 12 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Lungs, Thorax, or Respiration - chronic pulmonary edema
   Blood - hemorrhage
REFERENCE :
   TOLED5 Toxicology Letters.  (Elsevier Science Pub. B.V., POB 211, 1000 AE
   Amsterdam, Netherlands) V.1-    1977-  Volume(issue)/page/year: 39,1,1987
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 34 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   NICHAS Nichidai Igaku Zasshi.  Nihon University Medical Journal.  (Nihon
   Daigaku Igakkai, 30, Oyaguchi kami-machi, Itabashi-ku, Tokyo 173, Japan)
   V.1-    1937-  Volume(issue)/page/year: 44,173,1985
 
TYPE OF TEST            : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 58600 ug/m3/4H
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: 20,553,1978
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intraperitoneal
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 152 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   SKIZAB Shikoku Igaku Zasshi.  Shikoku Medical Journal.  (Tokushima Igakkai,
   Tokushima Daigaku Igakubu, Kuramoto-cho, Tokushima 770, Japan)  V.1- 1950- 
   Volume(issue)/page/year: 34,183,1978
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 620 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 489 mg/m3/2H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Mammal - dog
DOSE/DURATION           : 10 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Mammal - cat
DOSE/DURATION           : 223 mg/m3/7H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 95 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 411 mg/m3/7H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Administration onto the skin
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 140 mg/kg
TOXIC EFFECTS :
   Behavioral - convulsions or effect on seizure threshold
   Behavioral - excitement
   Lungs, Thorax, or Respiration - cyanosis
REFERENCE :
   AIHAAP American Industrial Hygiene Association Journal.  (AIHA, 475 Wolf
   Ledges Pkwy., Akron, OH 44311)  V.19-    1958-  Volume(issue)/page/year:
   40,164,1979
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Intravenous
SPECIES OBSERVED        : Rodent - rabbit
DOSE/DURATION           : 6600 ug/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 905 mg/kg
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
TYPE OF TEST            : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE       : Inhalation
SPECIES OBSERVED        : Rodent - guinea pig
DOSE/DURATION           : 411 mg/m3/7H
TOXIC EFFECTS :
   Details of toxic effects not reported other than lethal dose value
REFERENCE :
   TMMT** "The Toxicology of Methylcyclopentadienyl Manganese Tricarbonyl,"
   Witherup, S., et al., Cincinnati, OH, Univ. of Cincinnati, 1976
   Volume(issue)/page/year: -,-,1976
 
                 ** OTHER MULTIPLE DOSE TOXICITY DATA **
 
TYPE OF TEST            : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE       : Oral
SPECIES OBSERVED        : Rodent - mouse
DOSE/DURATION           : 75426 mg/kg/1Y-I
TOXIC EFFECTS :
   Kidney, Ureter, Bladder - other changes in urine composition
   Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
   Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
   AECTCV Archives of Environmental Contamination and Toxicology.
   (Springer-Verlag New York, Inc., Service Center, 44 Hartz Way, Secaucus, NJ
   070944)  V.1-    1973-  Volume(issue)/page/year: 23,473,1992

                              *** REVIEWS ***
 
   ACGIH TLV-TWA 0.2 mg(Mn)/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
   AMRL** Aerospace Medical Research Laboratory Report.  (Aerospace Technical
   Div., Air Force Systems Command, Wright-Patterson Air Force Base, OH 45433)
   Volume(issue)/page/year: TR-73-125,1973

   TOXICOLOGY REVIEW
   85DHAX "Medical and Biologic Effects of Environmental Pollutants Series,"
   Washington, DC, National Academy of Sciences, 1972-77
   Volume(issue)/page/year: Mn,126,1973

                    *** U.S. STANDARDS AND REGULATIONS ***
 
   MSHA STANDARD-air:TWA 0.1 ppm (0.2 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:
   3,164,1971

   OSHA PEL (Shipyard):CL 5 mg(Mn)/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

                    *** OCCUPATIONAL EXPOSURE LIMITS ***
 
   OEL-AUSTRALIA:TWA 0.2 mg/m3;Skin JAN 1993
   
   OEL-BELGIUM:TWA 0.2 mg/m3;Skin JAN 1993
   
   OEL-DENMARK:TWA 0.1 ppm (0.2 mg/m3);Skin JAN 1993
   
   OEL-FINLAND:TWA 0.2 mg/m3;STEL 0.6 mg/m3;Skin JAN 1993
   
   OEL-FRANCE:TWA 0.2 mg/m3;Skin JAN 1993
   
   OEL-SWITZERLAND:TWA 0.1 ppm (0.2 mg/m3);Skin JAN 1993
   
   OEL-UNITED KINGDOM:TWA 9.2 mg/m3;STEL 0.6 mg/m3;Skin 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 THE CHEMICAL-air:10H TWA 0.2 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 - 84547
       No. of Facilities: 11 (estimated)
       No. of Industries: 1
       No. of Occupations: 1
       No. of Employees: 34 (estimated)
   
   NOES - National Occupational Exposure Survey (1983)
     NOES Hazard Code - 84547
       No. of Facilities: 65 (estimated)
       No. of Industries: 2
       No. of Occupations: 5
       No. of Employees: 4891 (estimated)

                          *** STATUS IN U.S. ***
 
   EPA TSCA Section 8(b) CHEMICAL INVENTORY
   
   EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998

 
                            *** END OF RECORD ***