*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : PA9450000
CHEMICAL NAME : Methane, iodo-
CAS REGISTRY NUMBER : 74-88-4
LAST UPDATED : 199712
DATA ITEMS CITED : 61
MOLECULAR FORMULA : C-H3-I
MOLECULAR WEIGHT : 141.94
WISWESSER LINE NOTATION : I1
COMPOUND DESCRIPTOR : Tumorigen
Mutagen
Primary Irritant
SYNONYMS/TRADE NAMES :
* Halon 10001
* Iodometano
* Iodomethane
* Iodure de methyle
* Jod-methan
* Joodmethaan
* Methyl iodide
* Methyljodid
* Methyljodide
* Metylu jodek
* Monoioduro di metile
* RCRA waste number U138
*** HEALTH HAZARD DATA ***
** SKIN/EYE IRRITATION DATA **
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Human
DOSE/DURATION : 1 gm/10M
REACTION SEVERITY : Mild
REFERENCE :
BJIMAG British Journal of Industrial Medicine. (British Medical Journal,
Box 560B, Kennebunkport, ME 04046) V.1- 1944- Volume(issue)/page/year:
7,122,1950
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1 gm/30M
REACTION SEVERITY : Mild
REFERENCE :
BJIMAG British Journal of Industrial Medicine. (British Medical Journal,
Box 560B, Kennebunkport, ME 04046) V.1- 1944- Volume(issue)/page/year:
7,122,1950
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 500 mg
REACTION SEVERITY : Severe
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0570629
TYPE OF TEST : Standard Draize test
ROUTE OF EXPOSURE : Administration into the eye
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 100 mg
REACTION SEVERITY : Severe
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0570629
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 76 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BIJOAK Biochemical Journal. (Biochemical Soc. Book Depot, POB 32, Commerce
Way, Colchester, Essex CO2 8HP, UK) V.1- 1906- Volume(issue)/page/year:
98,38,1966
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1300 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York,
Academic Press, Inc., 1969 Volume(issue)/page/year: -,756,1969
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 101 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: -,84,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 110 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
ZEKBAI Zeitschrift fuer Krebsforschung. (Berlin, Fed. Rep. Ger.) V.1-75,
1903-71. For publisher information, see JCROD7. Volume(issue)/page/year:
74,241,1970
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 5 gm/m3/57M-C
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
BJIMAG British Journal of Industrial Medicine. (British Medical Journal,
Box 560B, Kennebunkport, ME 04046) V.1- 1944- Volume(issue)/page/year:
7,122,1950
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 172 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: -,84,1982
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 110 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:
4,354,1962
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 70 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
38MKAJ "Patty's Industrial Hygiene and Toxicology," 3rd rev. ed., Clayton,
G.D., and F.E. Clayton, eds., New York, John Wiley & Sons, Inc., 1978-82.
Vol. 3 originally pub. in 1979; pub. as 2nd rev. ed. in 1985.
Volume(issue)/page/year: 2B,3447,1981
TYPE OF TEST : LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 794 mg/kg
TOXIC EFFECTS :
Lungs, Thorax, or Respiration - other changes
Gastrointestinal - other changes
Blood - hemorrhage
REFERENCE :
NTIS** National Technical Information Service. (Springfield, VA 22161)
Formerly U.S. Clearinghouse for Scientific & Technical Information.
Volume(issue)/page/year: OTS0570629
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Administration onto the skin
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 800 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
KODAK* Kodak Company Reports. (343 State St., Rochester, NY 14650)
Volume(issue)/page/year: 21MAY1971
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - guinea pig
DOSE/DURATION : 51 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: -,84,1982
** TUMORIGENIC DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 50 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Gastrointestinal - colon tumors
Tumorigenic - tumors at site of application
REFERENCE :
ZEKBAI Zeitschrift fuer Krebsforschung. (Berlin, Fed. Rep. Ger.) V.1-75,
1903-71. For publisher information, see JCROD7. Volume(issue)/page/year:
74,241,1970
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 44 mg/kg/8W-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria
Lungs, Thorax, or Respiration - tumors
REFERENCE :
CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut
Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year:
35,1411,1975
** MUTATION DATA **
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Bacteria - Salmonella typhimurium
DOSE/DURATION : 2 uL/plate
REFERENCE :
JJIND8 JNCI, Journal of the National Cancer Institute. (Washington, DC)
V.61-79, 1978-87. For publisher information, see JNCIEQ.
Volume(issue)/page/year: 62,873,1979
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 20 umol/L
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000
Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year:
46,277,1980
TYPE OF TEST : DNA repair
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 10 ug/disc
REFERENCE :
JJIND8 JNCI, Journal of the National Cancer Institute. (Washington, DC)
V.61-79, 1978-87. For publisher information, see JNCIEQ.
Volume(issue)/page/year: 62,873,1979
TYPE OF TEST : DNA damage
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 1 umol/L
REFERENCE :
ARTODN Archives of Toxicology. (Springer-Verlag, Heidelberger Pl. 3, D-1000
Berlin 33, Fed. Rep. Ger.) V.32- 1974- Volume(issue)/page/year:
46,277,1980
TYPE OF TEST : Gene conversion and mitotic recombination
TEST SYSTEM : Yeast - Saccharomyces cerevisiae
DOSE/DURATION : 1000 ppm
REFERENCE :
JJIND8 JNCI, Journal of the National Cancer Institute. (Washington, DC)
V.61-79, 1978-87. For publisher information, see JNCIEQ.
Volume(issue)/page/year: 62,901,1979
TYPE OF TEST : Mutation in microorganisms
TEST SYSTEM : Rodent - mouse Lymphocyte
DOSE/DURATION : 50 mg/L/4H
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 59,61,1979
TYPE OF TEST : Mutation in mammalian somatic cells
TEST SYSTEM : Rodent - mouse Lymphocyte
DOSE/DURATION : 3600 ug/L
REFERENCE :
ENMUDM Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For
publisher information, see EMMUEG. Volume(issue)/page/year: 7,523,1985
TYPE OF TEST : Morphological transformation
TEST SYSTEM : Rodent - hamster Embryo
DOSE/DURATION : 1 mg/L
REFERENCE :
IJCNAW International Journal of Cancer. (International Union Against
Cancer, 3 rue du Conseil- General, 1205 Geneva, Switzerland) V.1- 1966-
Volume(issue)/page/year: 19,642,1977
TYPE OF TEST : Mutation in mammalian somatic cells
TEST SYSTEM : Rodent - hamster Ovary
DOSE/DURATION : 2 mg/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 136,137,1984
*** REVIEWS ***
ACGIH TLV-TWA 12 mg/m3 (2 ppm) (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
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: 41,213,1986
IARC Cancer Review:Human No Adequate Data
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: 41,213,1986
IARC Cancer Review:Group 3
IMSUDL IARC Monographs, Supplement. (WHO Publications Centre USA, 49
Sheridan Ave., Albany, NY 12210) No.1- 1979- Volume(issue)/page/year:
7,56,1987
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-air:TWA 5 ppm (28 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:
3,166,1971
OSHA PEL (Gen Indu):8H TWA 5 ppm (28 mg/m3) (skin)
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 5 ppm (28 mg/m3) (skin)
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 5 ppm (28 mg/m3) (skin)
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 5 ppm (28 mg/m3) (skin)
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 2 ppm (10 mg/m3);Skin;Carcinogen JAN 1993
OEL-BELGIUM:TWA 2 ppm (12 mg/m3);Skin;Carcinogen JAN 1993
OEL-DENMARK:TWA 1 ppm (5.6 mg/m3);Skin JAN 1993
OEL-FINLAND:TWA 5 ppm (28 mg/m3);STEL 10 ppm (56 mg/m3);Skin JAN 1993
OEL-GERMANY;Carcinogen JAN 1993
OEL-THE NETHERLANDS:TWA 2 ppm (10 mg/m3);Skin JAN 1993
OEL-THE PHILIPPINES:TWA 5 ppm (28 mg/m3);Skin JAN 1993
OEL-POLAND:TWA 10 mg/m3 JAN 1993
OEL-SWEDEN:TWA 1 ppm (6 mg/m3);STEL 5 ppm (30 mg/m3);Skin;Carcinogen JAN
1993
OEL-SWITZERLAND:TWA 2 ppm (12 mg/m3);Skin JAN 1993
OEL-UNITED KINGDOM:TWA 5 ppm (28 mg/m3);STEL 10 ppm;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 METHYL IODIDE-air:10H CA TWA 2 ppm (Sk) (1.7 ppm LOQ)
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 - M0422
No. of Facilities: 26 (estimated)
No. of Industries: 2
No. of Occupations: 4
No. of Employees: 413 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - M0422
No. of Facilities: 34 (estimated)
No. of Industries: 2
No. of Occupations: 6
No. of Employees: 2182 (estimated)
No. of Female Employees: 440 (estimated)
*** STATUS IN U.S. ***
EPA GENETOX PROGRAM 1988, Positive: Carcinogenicity-mouse/rat; SHE-clonal
assay
EPA GENETOX PROGRAM 1988, Positive: L5178Y cells in vitro-TK test; E coli
polA without S9
EPA GENETOX PROGRAM 1988, Positive: S cerevisiae-homozygosis
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 CURRENT INTELLIGENCE BULLETIN 43, 1984
NIOSH Analytical Method, 1994: Methyl iodide, 1014
Deleted from 6th Annual Report. reason: re-evaluated by IARC
*** END OF RECORD ***