1,2-Dichlorobenzene

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Names

[ CAS No. ]:
95-50-1

[ Name ]:
1,2-Dichlorobenzene

[Synonym ]:
Chloroden
DCB
o-dichlorobenzene
MFCD00000535
1,2-Dichlorobenzene
1,2-dichloro-benzene
dilatindb
Dizene
Chloroben
2-dichlorobenzene
ODCB
EINECS 202-425-9
ortho-dichlorobenzene
Termitkil
dowtherme
Cloroben

Chemical & Physical Properties

[ Density]:
1.3±0.1 g/cm3

[ Boiling Point ]:
180.5±0.0 °C at 760 mmHg

[ Melting Point ]:
-15 °C

[ Molecular Formula ]:
C₆H₄Cl₂

[ Molecular Weight ]:
147.002

[ Flash Point ]:
65.6±0.0 °C

[ Exact Mass ]:
145.969009

[ LogP ]:
3.28

[ Vapour density ]:
5.1 (vs air)

[ Vapour Pressure ]:
1.2±0.3 mmHg at 25°C

[ Index of Refraction ]:
1.549

[ Stability ]:
Stable, but possibly light sensitive. Combustible. Incompatible with oxidizing agents, aluminium, aluminium alloys. Attacks some rubbers and plastics.

[ Water Solubility ]:
0.13 g/L (20 ºC)

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CZ4500000

CHEMICAL NAME :: Benzene, o-dichloro-

CAS REGISTRY NUMBER :: 95-50-1

LAST UPDATED :: 199712

DATA ITEMS CITED :: 69

MOLECULAR FORMULA :: C6-H4-Cl2

MOLECULAR WEIGHT :: 147.00

WISWESSER LINE NOTATION :: GR BG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Rinsed with water

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 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 - rat

DOSE/DURATION :: 821 ppm/7H

TOXIC EFFECTS :: Behavioral - general anesthetic Liver - hepatitis (hepatocellular necrosis), zonal Sense Organs and Special Senses (Eye) - lacrimation

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 840 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 4386 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 1228 mg/kg

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 - mouse

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >10 gm/kg

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 :: 250 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 2 gm/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 - guinea pig

DOSE/DURATION :: 800 ppm/24H

TOXIC EFFECTS :: Liver - hepatitis (hepatocellular necrosis), diffuse

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 27300 ug/kg/39W-I

TOXIC EFFECTS :: Kidney, Ureter, Bladder - other changes in urine composition Blood - agranulocytosis Blood - changes in erythrocyte (RBC) count

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 3 gm/kg/10D-I

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in spleen weight Blood - changes in leukocyte (WBC) count

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 32500 mg/kg/13W-I

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in spleen weight Blood - changes in erythrocyte (RBC) count

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 7 gm/kg/14D-I

TOXIC EFFECTS :: Liver - fatty liver degeneration Related to Chronic Data - death

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 32500 mg/kg/13W-I

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in spleen weight

TYPE OF TEST :: TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :: Inhalation

DOSE :: 200 ppm/6H

SEX/DURATION :: female 6-15 day(s) after conception

TOXIC EFFECTS :: Reproductive - Specific Developmental Abnormalities - musculoskeletal system

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Intraperitoneal

DOSE :: 50 mg/kg

SEX/DURATION :: male 1 day(s) pre-mating

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

TYPE OF TEST :: Sperm Morphology

TYPE OF TEST :: Micronucleus test

MUTATION DATA

TYPE OF TEST :: Sister chromatid exchange

TEST SYSTEM :: Rodent - hamster Ovary

REFERENCE :: SCIEAS Science. (American Assoc. for the Advancement of Science, 1333 H St., NW, Washington, DC 20005) V.1- 1895- Volume(issue)/page/year: 236,933,1987 *** REVIEWS *** ACGIH TLV-Not classifiable as a human carcinogen 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-STEL 301 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 ACGIH TLV-TWA 150 mg/m3 (25 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 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: 7,231,1974 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: 7,231,1974 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: 29,213,1982 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: 29,213,1982 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: 7,192,1987 *** U.S. STANDARDS AND REGULATIONS *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD:air-CL 50 ppm (300 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: 3,76,1971 OSHA PEL (Gen Indu):CL 50 ppm (300 mg/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):CL 50 ppm (300 mg/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):CL 50 ppm (300 mg/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):CL 50 ppm (300 mg/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-AUSTRALIA:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-AUSTRIA:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-BELGIUM:STEL 50 ppm (301 mg/m3);Skin JAN 1993 OEL-DENMARK:STEL 50 ppm (300 mg/m3) JAN 1993 OEL-FINLAND:TWA 50 ppm (300 mg/m3);STEL 75 ppm (450 mg/m3);Skin JAN 1993 OEL-FRANCE:STEL 50 ppm (300 mg/m3) JAN 1993 OEL-GERMANY:TWA 50 ppm (300 mg/m3);Skin JAN 1993 OEL-HUNGARY:TWA 50 mg/m3;STEL 100 mg/m3;Skin JAN 1993 OEL-JAPAN:STEL 50 ppm (300 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-POLAND:TWA 20 mg/m3 JAN 1993 OEL-RUSSIA:STEL 50 mg/m3 JAN 1993 OEL-SWEDEN:STEL 50 ppm (300 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 50 ppm (300 mg/m3);STEL 100 ppm (600 mg/m3) JAN 1993 OEL-THAILAND:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-TURKEY:TWA 50 ppm (300 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 50 ppm (300 mg/m3);STEL 50 ppm 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 o-DICHLOROBENZENE-air:CL 50 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 - 24003 No. of Facilities: 8838 (estimated) No. of Industries: 83 No. of Occupations: 69 No. of Employees: 72149 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 24003 No. of Facilities: 10577 (estimated) No. of Industries: 59 No. of Occupations: 59 No. of Employees: 92246 (estimated) No. of Female Employees: 12686 (estimated)

Safety Information

[ Symbol ]:

GHS02, GHS06, GHS08

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H225-H301 + H311 + H331-H370-H412

[ Supplemental HS ]:
Repeated exposure may cause skin dryness or cracking.

[ Precautionary Statements ]:
P210-P260-P280-P301 + P310 + P330-P308 + P311-P403 + P233

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face respirator (US);Gloves;multi-purpose combination respirator cartridge (US)

[ Hazard Codes ]:
Xn:Harmful

[ Risk Phrases ]:
R22;R36/37/38;R50/53

[ Safety Phrases ]:
S9-S16-S26-S60-S61-S23-S45-S36/37

[ RIDADR ]:
UN 1993 3/PG 2

[ WGK Germany ]:
3

[ RTECS ]:
CZ4500000

[ Packaging Group ]:
III

[ Hazard Class ]:
6.1

[ HS Code ]:
29036100

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

1,2,4,5-Tetrachlorobenzene
2-Bromochlorobenzene
2-Nitrochlorobenzene
Tyramine
3,4-Dichloroaniline
1,2,4-Trichlorobenzene
Chlorobenzene
benzene
1,2,3-trichlorobenzene
1,3-Benzodioxole

DownStream

4,5-dichloro-N-methyl-2-nitroaniline
2-(2-ethylbenzoyl)benzoic acid
2,6-Dichlorobenzoxazole
2,3,3',4,4',5-PCB
trimethylene bis(4-aminobenzoate)
2'-Aminoacetophenone
Fluorobenzene
1-Chloro-2-fluorobenzene
1,3-Difluorobenzene
1-Chloro-3-fluorobenzene

Customs

[ HS Code ]: 2903999090

[ Summary ]:
2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

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1,2-Dichlorobenzene
d4-1,2-dichlorobenzene
4-iodo-1,2-dichlorobenzene
4-allyl-1,2-dichlorobenzene
4-Amino-1,2-dichlorobenzene
4-Bromo-1,2-dichlorobenzene
Ethyl 6-amino-4-bromopicolinate
3-(2-(dimethylamino)ethyl)-1H-pyrazol-5-amine
(R)-Tert-butyl 2-(((5-bromopyridin-3-YL)oxy)methyl)azetidine-1-carboxylate
(2E)-2-(3-methylcyclopentylidene)acetic acid
Tert-butyl(2,2-dimethylbutyl)amine
Butanoic acid, 3,4,4-trihydroxy-
5,5-Dimethylcyclopent-1-ene-1-carboxylic acid
1-(2-Chloroethyl)-2-methylcyclohexane
2-Bromo-4-chloro-3-(3-ethylphenyl)pyridine
3-(Chloromethyl)-4-methylbenzonitrile

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