CAS 126-99-8|chloroprene

CHEMICAL IDENTIFICATION

RTECS NUMBER :

EI9625000

CHEMICAL NAME :

1,3-Butadiene, 2-chloro-

CAS REGISTRY NUMBER :

126-99-8

LAST UPDATED :

199712

DATA ITEMS CITED :

78

MOLECULAR FORMULA :

C4-H5-Cl

MOLECULAR WEIGHT :

88.54

WISWESSER LINE NOTATION :

1UYG1U1

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 :

450 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

11800 mg/m3/4H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

500 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea Lungs, Thorax, or Respiration - cyanosis

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

146 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

2300 mg/m3

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1 gm/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea Lungs, Thorax, or Respiration - cyanosis

TYPE OF TEST :

LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Mammal - cat

DOSE/DURATION :

1290 mg/m3/8H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Mammal - cat

DOSE/DURATION :

100 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

3870 mg/m3/8H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Intravenous

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

96 mg/kg

TOXIC EFFECTS :

Blood - other changes Skin and Appendages - dermatitis, other (after systemic exposure)

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Bird - pigeon

DOSE/DURATION :

13 gm/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

9100 ug/kg/26W-I

TOXIC EFFECTS :

Liver - changes in liver weight Endocrine - changes in spleen weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - dehydrogenases

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1680 mg/kg/3W-I

TOXIC EFFECTS :

Liver - hepatitis (hepatocellular necrosis), diffuse Liver - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - hepatic microsomal mixed oxidase (dealkylation, hydroxylation, etc.)

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

161 ppm/6H/4W-I

TOXIC EFFECTS :

Liver - changes in liver weight Kidney, Ureter, Bladder - changes in bladder weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

220 ug/m3/24H/60D-C

TOXIC EFFECTS :

Brain and Coverings - other degenerative changes Liver - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - phosphatases

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

200 mg/m3/24H/91D-C

TOXIC EFFECTS :

Brain and Coverings - other degenerative changes Gastrointestinal - ulceration or bleeding from large intestine Blood - changes in spleen

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

63 mg/m3/21D-I

TOXIC EFFECTS :

Immunological Including Allergic - decreased immune response

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1260 mg/m3/14D-I

TOXIC EFFECTS :

Endocrine - changes in thymus weight Immunological Including Allergic - decrease in cellular immune response Immunological Including Allergic - decrease in humoral immune response

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

200 mg/m3/24H/91D-C

TOXIC EFFECTS :

Gastrointestinal - ulceration or bleeding from large intestine Blood - changes in spleen Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Subcutaneous

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

42 mg/kg/21D-I

TOXIC EFFECTS :

Immunological Including Allergic - decreased immune response Biochemical - Metabolism (Intermediary) - other proteins

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - hamster

DOSE/DURATION :

162 ppm/6H/4W-I

TOXIC EFFECTS :

Liver - hepatitis (hepatocellular necrosis), zonal Nutritional and Gross Metabolic - weight loss or decreased weight gain Related to Chronic Data - death

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

9100 ug/kg

SEX/DURATION :

male 26 week(s) pre-mating

TOXIC EFFECTS :

Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1 mg/kg

SEX/DURATION :

female 11-12 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - Central Nervous System

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1 mg/kg

SEX/DURATION :

female 11-12 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1 mg/kg

SEX/DURATION :

female 9-10 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - other developmental abnormalities

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

4 mg/m3/24H

SEX/DURATION :

female 3-4 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetal death

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

4 mg/m3/24H

SEX/DURATION :

female 11-12 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - Central Nervous System

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

10 ppm/4H

SEX/DURATION :

female 3-20 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

150 ug/m3/24H

SEX/DURATION :

male 19 week(s) pre-mating

TOXIC EFFECTS :

Reproductive - Paternal Effects - spermatogenesis (incl. genetic material, sperm morphology, motility, and count)

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

500 mg/m3/5H

SEX/DURATION :

female 17 week(s) pre-mating

TOXIC EFFECTS :

Reproductive - Maternal Effects - menstrual cycle changes or disorders

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

500 mg/m3/5H

SEX/DURATION :

female 30 week(s) pre-mating

TOXIC EFFECTS :

Reproductive - Maternal Effects - ovaries, fallopian tubes

TYPE OF TEST :

Sex chromosome loss and nondisjunction

TYPE OF TEST :

Cytogenetic analysis

TYPE OF TEST :

Cytogenetic analysis

TYPE OF TEST :

Dominant lethal test

TYPE OF TEST :

Micronucleus test

TYPE OF TEST :

Cytogenetic analysis

MUTATION DATA

TYPE OF TEST :

Morphological transformation

TEST SYSTEM :

Rodent - hamster Embryo

REFERENCE :

AETODY Advances in Modern Environmental Toxicology. (Senate Press, Inc., P.O. Box 252, Princeton Junction, NJ 08550) V.1- 1980- Volume(issue)/page/year: 1,241,1980 *** REVIEWS *** ACGIH TLV-TWA 36 mg/m3 (10 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 Inadequate 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: 19,131,1979 IARC Cancer Review:Human Inadequate 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: 19,131,1979 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: 7,160,1987 TOXICOLOGY REVIEW CTOXAO Clinical Toxicology. (New York, NY) V.1-18, 1968-81. For publisher information, see JTCTDW. Volume(issue)/page/year: 13,153,1978 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 25 ppm (90 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: 3,54,1971 OSHA PEL (Gen Indu):8H TWA 25 ppm (90 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 25 ppm (90 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 25 ppm (90 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 25 ppm (90 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 10 ppm (35 mg/m3);Skin JAN 1993 OEL-BELGIUM:TWA 10 ppm (36 mg/m3);Skin JAN 1993 OEL-DENMARK:STEL 1 ppm (3.6 mg/m3);Skin JAN 1993 OEL-FINLAND:TWA 10 ppm (36 mg/m3);STEL 20 ppm (72 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 10 ppm (36 mg/m3) JAN 1993 OEL-GERMANY:TWA 10 ppm (36 mg/m3);Skin JAN 1993 OEL-HUNGARY:TWA 10 mg/m3;STEL 30 mg/m3 JAN 1993 OEL-POLAND:TWA 2 mg/m3 JAN 1993 OEL-RUSSIA:STEL 0.05 mg/m3 JAN 1993 OEL-SWEDEN:TWA 10 ppm (35 mg/m3);STEL 15 ppm (60 mg/m3);Skin JAN 1993 OEL-SWITZERLAND:TWA 10 ppm (36 mg/m3);STEL 20 ppm;Skin JAN 1993 OEL-UNITED KINGDOM:TWA 10 ppm (30 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 beta-CHLOROPRENE-air:CA CL 1 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 - 18260 No. of Facilities: 3538 (estimated) No. of Industries: 39 No. of Occupations: 26 No. of Employees: 43712 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 18260 No. of Facilities: 1864 (estimated) No. of Industries: 17 No. of Occupations: 21 No. of Employees: 17750 (estimated) No. of Female Employees: 654 (estimated)

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