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MSDS  : Osmium tetroxide
CAS  : 20816-12-0
SYNONYMS  : * Osmic acid * Osmium tetroxide * RCRA waste number P087
*** CHEMICAL IDENTIFICATION ***

RTECS NUMBER : RN1140000
CHEMICAL NAME : Osmium tetroxide
CAS REGISTRY NUMBER : 20816-12-0
LAST UPDATED : 199712
DATA ITEMS CITED : 39
MOLECULAR FORMULA : O4-Os
MOLECULAR WEIGHT : 254.20
WISWESSER LINE NOTATION : OS O4
COMPOUND DESCRIPTOR : Drug
Mutagen
Reproductive Effector
Human
SYNONYMS/TRADE NAMES :
* Osmic acid
* Osmium tetroxide
* RCRA waste number P087

*** HEALTH HAZARD DATA ***

** ACUTE TOXICITY DATA **

TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Human - man
DOSE/DURATION : 133 ug/m3
TOXIC EFFECTS :
Sense Organs and Special Senses (Eye) - lacrimation
Sense Organs and Special Senses (Eye) - effect, not otherwise specified
Lungs, Thorax, or Respiration - structural or functional change in trachea
or bronchi
REFERENCE :
BJIMAG British Journal of Industrial Medicine. (British Medical Journal,
Box 560B, Kennebunkport, ME 04046) V.1- 1944- Volume(issue)/page/year:
3,183,1946

TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 40 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd.,
San Romon, CA 94583) Volume(issue)/page/year: -,8,1961

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 14100 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd.,
San Romon, CA 94583) Volume(issue)/page/year: -,8,1961

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 162 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd.,
San Romon, CA 94583) Volume(issue)/page/year: -,8,1961

TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 40 ppm/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd.,
San Romon, CA 94583) Volume(issue)/page/year: -,8,1961

TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 13500 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
SCCUR* Shell Chemical Company. Unpublished Report. (2401 Crow Canyon Rd.,
San Romon, CA 94583) Volume(issue)/page/year: -,8,1961

TYPE OF TEST : LCLo - Lowest published lethal concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rabbit
DOSE/DURATION : 1316 mg/m3/30M
TOXIC EFFECTS :
Behavioral - coma
Lungs, Thorax, or Respiration - other changes
Kidney, Ureter, Bladder - other changes
REFERENCE :
JIDHAN Journal of Industrial Hygiene. (Cambridge, MA) V.1-17, 1919-35. For
publisher information, see AEHLAU. Volume(issue)/page/year: 15,136,1933

** REPRODUCTIVE DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intratesticular
SPECIES OBSERVED : Rodent - rat
DOSE : 20336 ug/kg
SEX/DURATION : male 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material,
sperm morphology, motility, and count)
Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot,
POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960-
Volume(issue)/page/year: 7,21,1964

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE : 20336 ug/kg
SEX/DURATION : male 30 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - spermatogenesis (incl. genetic material,
sperm morphology, motility, and count)
Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot,
POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960-
Volume(issue)/page/year: 7,21,1964

** MUTATION DATA **

TYPE OF TEST : DNA repair
TEST SYSTEM : Bacteria - Bacillus subtilis
DOSE/DURATION : 5 mmol/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 77,109,1980

TYPE OF TEST : Unscheduled DNA synthesis
TEST SYSTEM : Rodent - hamster Embryo
DOSE/DURATION : 200 umol/L
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE
Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 131,173,1984

*** REVIEWS ***

ACGIH TLV-STEL 0.0047 mg/m3 (0.0006 ppm)
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

ACGIH TLV-TWA 0.0016 mg/m3 (0.0002 ppm)
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

*** U.S. STANDARDS AND REGULATIONS ***

MSHA STANDARD-air:TWA 0.002 mg/m3
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:
3,192,1971

OSHA PEL (Gen Indu):8H TWA 0.002 mg(Os)/m3
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 0.002 mg(Os)/m3
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 0.002 mg(Os)/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

OSHA PEL (Fed Cont):8H TWA 0.002 mg(Os)/m3
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-ARAB Republic of Egypt:TWA 0.0002 ppm (0.002 mg/m3) JAN 1993

OEL-AUSTRALIA:TWA 0.0002 ppm (0.002 mg/m3);STEL 0.0006 ppm JAN 1993

OEL-BELGIUM:TWA 0.0002 ppm (0.0016 mg/m3);STEL 0.0006 ppm JAN 1993

OEL-DENMARK:TWA 0.0002 ppm (0.002 mg/m3) JAN 1993

OEL-FINLAND:TWA 0.0002 mg/m3;STEL 0.002 mg/m3 JAN 1993

OEL-FRANCE:TWA 0.0002 ppm (0.002 mg/m3) JAN 1993

OEL-GERMANY:TWA 0.0002 ppm (0.002 mg/m3) JAN 1993

OEL-HUNGARY:TWA 0.002 mg/m3;STEL 0.003 mg/m3 JAN 1993

OEL-THE NETHERLANDS:TWA 0.0002 ppm (0.002 mg/m3) JAN 1993

OEL-THE PHILIPPINES:TWA 0.002 mg/m3 JAN 1993

OEL-SWITZERLAND:TWA 0.0002 ppm (0.002 mg/m3);STEL 0.0004 ppm JAN 1993

OEL-UNITED KINGDOM:TWA 0.0002 ppm (0.002 mg/m3);STEL 0.0006 ppm (0.006
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 OSMIUM TETROXIDE-air:10H TWA 0.0002 ppm;STEL 0.0006 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 - 52370
No. of Facilities: 195 (estimated)
No. of Industries: 2
No. of Occupations: 2
No. of Employees: 370 (estimated)

NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 52370
No. of Facilities: 87 (estimated)
No. of Industries: 2
No. of Occupations: 5
No. of Employees: 1733 (estimated)
No. of Female Employees: 420 (estimated)

*** STATUS IN U.S. ***

EPA GENETOX PROGRAM 1988, Positive: B subtilis rec assay

EPA GENETOX PROGRAM 1988, Inconclusive: D melanogaster Sex-linked lethal

EPA TSCA Section 8(b) CHEMICAL INVENTORY

On EPA IRIS database


*** END OF RECORD ***
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ALL Chemical Property And Toxicity Analysis PAGES IN THIS GROUP
NAMECAS
7-Oxabicyclo(4.1.0)heptane-3-carbonitrile 141-40-2
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid, endo- 38263-55-7
Osmium(4+),bis(2,2'-bipyridine-N,N')(mu-(1,4-bis((2,2':6',2''-terpyridin)-6-ylmethyl) -1,4-cyclohexanediol))bis(pyridine)di-, tetrachloride 57304-12-8
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid, exo- 38263-56-8
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-(N-(2-benzothiazolyl)carbamoyl)- 73806-01-6
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-(N-sec-butylcarbamoyl)- 73806-02-7
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-carbamoyl-, ammonia salt 73806-03-8
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-((4-chlorophenyl)amino)carbonyl)-, (exo,exo)- 87126-55-4
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-(dodecylcarbamoyl)- 73806-04-9
7-Oxabicyclo(4.1.0)heptane-3-carboxylic acid,4-methyl-, allyl ester 10138-39-3
7-Oxabicyclo(4.1.0)heptane-3-carboxylic acid,4-methyl-, (4-methyl-7-oxabicyclo(4.1.0)hept-3-yl)methyl ester 141-37-7
7-Oxabicyclo(4.1.0)heptane-3-carboxylic acid,7-oxabicyclo(4.1.0)hept-3-ylmethyl ester 2386-87-0
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-(pentylcarbamoyl)- 73806-05-0
Osmium(2+),bis(2,2'-bipyridine-N,N')(mu-(1,4-bis((2,2':6',2''-terpyridin)-6-ylmethyl) -1,4- cyclohexanediol-N(sup1),N(sup 1'),N(sup 1''):N(sup 4),N(sup 4'),N(sup4''))-dichlorodi-, dichloride 57255-18-2
7-Oxabicyclo(2.2.1)heptane-2-carboxylic acid,3-((2,2,2-trifluoroethyl)carbamoyl)- 73806-06-1
7-Oxabicyclo(4.1.0)heptane, 1-chloro- 51595-54-1
7-Oxabicyclo(2.2.1)heptane-2,3-diacetonitrile 73806-07-2
7-Oxabicylco(4.1.0)heptane, 3,4-dibromo- 73806-07-2
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboxamide,5,6-dibromo-N,N'-diethyl- 73816-36-1
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide, exo- 28871-91-2
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(o-anisyl)-, exo-(Z)- 20707-40-8
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-bromo- 73816-37-2
1-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(2-bromoethyl)- 73806-08-3
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(m-bromomethylbenzyl)- 102504-23-4
Osmium, tetraamminetetrachloro- 102504-23-4
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N,N'-(2-butynylene)bis- 73806-09-4
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(o-chlorobenzyl)-, exo-(Z)- 7577-85-7
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(p-chlorobenzyl)-, exo-(Z)- 7588-32-1
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(4-chloro-2-butynyl)- 73806-10-7
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(o-chlorophenyl)-, exo-(Z)- 20711-84-6
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(p-chlorophenyl)-, exo-(Z)- 20711-86-8
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(p-chlorophenylsulfonyl)- 73806-11-8
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(m-chloro-o-tolyl)-, exo-(Z)- 17183-08-3
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(6-chloro-m-(trifluoromethyl)phenyl)-, exo-(Z)- 17183-07-2
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(2,4-dichlorophenyl)-, exo-(Z)- 7741-91-5
Osmium tetroxide 20816-12-0
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(dimethylsulfamoyl)- 57105-59-6
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(dimethylthiocarbamoyl)- 73806-12-9
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(3-(2,4-dinitrophenyl)-1-ureido)- 73816-38-3
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(2-ethoxyphenyl)-, exo-(Z)- 20707-41-9
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(m-fluorophenyl)-, exo-(Z)- 30627-44-2
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(o-fluorophenyl)-, exo-(Z)- 29745-05-9
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(p-fluorophenyl)-, exo-(Z)- 30627-45-3
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-hydroxy-2,3-dimethyl- 30627-45-3
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-hydroxymethyl-, acetate 73806-13-0
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-hydroxymethyl-, ethylcarbonate 73806-14-1
Osmunda claytoniana Linn., extractSUBSTANCE DEFINITION :Plant belonging to the family OsmundaceaeREFERENCE :IJEBA6 Indian Journal of Experimental Biology. (Publications & InformationDirectorate, CSIR, Hillside Rd., New Delhi 110 012, India) V.1- 1963-Volume(issue)/page/year: 22,312,1984 73806-14-1
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-hydroxymethyl-, phosphite (3:1) 73806-15-2
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N-(2-hydroxypropyl)-, exo-(Z)- 20711-66-4
7-Oxabicyclo(2.2.1)heptane-2,3-dicarboximide,N,N'-methylenebis- 73806-16-3

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