*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : GW1750000 CHEMICAL NAME : Cyclohexanone, 2-methyl- CAS REGISTRY NUMBER : 583-60-8 LAST UPDATED : 199712 DATA ITEMS CITED : 30 MOLECULAR FORMULA : C7-H12-O MOLECULAR WEIGHT : 112.19 WISWESSER LINE NOTATION : L6VTJ B1 SYNONYMS/TRADE NAMES : * 2-Methyl-cyclohexanon * alpha-Methylcyclohexanone *** HEALTH HAZARD DATA *** ** ACUTE TOXICITY DATA ** TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Oral SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 2140 uL/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 TYPE OF TEST : LCLo - Lowest published lethal concentration ROUTE OF EXPOSURE : Inhalation SPECIES OBSERVED : Rodent - rat DOSE/DURATION : 2800 ppm/4H TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Intraperitoneal SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 200 mg/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: AD691-490 TYPE OF TEST : LDLo - Lowest published lethal dose ROUTE OF EXPOSURE : Intravenous SPECIES OBSERVED : Rodent - mouse DOSE/DURATION : 270 mg/kg TOXIC EFFECTS : Cardiac - change in rate Vascular - BP lowering not characterized in autonomic section REFERENCE : COREAF Comptes Rendus Hebdomadaires des Seances, Academie des Sciences. (Paris, France) V.1-261, 1835-1965. For publisher information, see CRASEV. Volume(issue)/page/year: 236,633,1953 TYPE OF TEST : LD50 - Lethal dose, 50 percent kill ROUTE OF EXPOSURE : Administration onto the skin SPECIES OBSERVED : Rodent - rabbit DOSE/DURATION : 1770 uL/kg TOXIC EFFECTS : Details of toxic effects not reported other than lethal dose value REFERENCE : AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969 *** REVIEWS *** ACGIH TLV-STEL 344 mg/m3 (75 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 ACGIH TLV-TWA 229 mg/m3 (50 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 50 ppm (230 mg/m3) (skin) DTLWS* "Documentation of the Threshold Limit Values for Substances in Workroom Air," Supplements. For publisher information, see 85INA8. Volume(issue)/page/year: 3,23,1973 OSHA PEL (Gen Indu):8H TWA 100 ppm (460 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 100 ppm (460 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 100 ppm (460 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 100 ppm (460 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 50 ppm (230 mg/m3);STEL 75 ppm;Skin JAN 1993 OEL-BELGIUM:TWA 50 ppm (229 mg/m3);STEL 75 ppm (344 mg/m3);Skin JAN 1993 OEL-DENMARK:TWA 50 ppm (230 mg/m3);Skin JAN 1993 OEL-FINLAND:TWA 50 ppm (230 mg/m3);STEL 75 ppm (345 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 50 ppm (230 mg/m3);Skin JAN 1993 OEL-GERMANY:TWA 50 ppm (230 mg/m3);Skin JAN 1993 OEL-JAPAN:TWA 50 ppm (230 mg/m3);Skin JAN 1993 OEL-THE NETHERLANDS:TWA 50 ppm (230 mg/m3);Skin JAN 1993 OEL-THE PHILIPPINES:TWA 100 ppm (460 mg/m3);Skin JAN 1993 OEL-RUSSIA:TWA 50 ppm JAN 1993 OEL-SWITZERLAND:TWA 50 ppm (230 mg/m3);STEL 100 ppm;Skin JAN 1993 OEL-TURKEY:TWA 100 ppm (460 mg/m3);Skin JAN 1993 OEL-UNITED KINGDOM:TWA 50 ppm (230 mg/m3);STEL 75 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 THE CHEMICAL-air:10H TWA 50 ppm (Sk);STEL 75 ppm (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 *** STATUS IN U.S. *** EPA TSCA Section 8(b) CHEMICAL INVENTORY NIOSH Analytical Method, 1994: Methylcyclohexanone, 2521 *** END OF RECORD ***