Chlorobenzene

CAS RN: 108-90-7

Health Effects

0.2.1 SUMMARY OF EXPOSURE
  • 0.2.1.1 ACUTE EXPOSURE
    • A) Chlorobenzene is a skin and mucous membrane irritant. Exposures may result in central nervous system depression and liver and kidney damage. Intentional ingestions have resulted in hepatic necrosis. Acute exposures may begin, depending on dose, with headaches and dizziness followed by gastrointestinal complaints, shortness of breath, tachycardia and circulatory insufficiency.
    • B) Chronic inhalation exposures may result in eye irritation, headache, dizziness, somnolence and gastrointestinal disorders. Acute inhalation exposures to high concentrations may result in narcosis. There is no evidence that severe liver damage results from acute inhalation exposures.
0.2.6 RESPIRATORY
  • 0.2.6.1 ACUTE EXPOSURE
    • A) Shortness of breath may develop following acute exposures.
    • B) In animal lethality studies, death was attributed to CNS depression resulting in respiratory failure.
0.2.7 NEUROLOGIC
  • 0.2.7.1 ACUTE EXPOSURE
    • A) Chlorobenzene is a CNS depressant following high dose acute inhalation and oral exposures. In animal lethality studies, death was attributed to CNS depression resulting in respiratory failure.
0.2.8 GASTROINTESTINAL
  • 0.2.8.1 ACUTE EXPOSURE
    • A) Ingestion may result in gastric irritation.
0.2.9 HEPATIC
  • 0.2.9.1 ACUTE EXPOSURE
    • A) Acute ingestions have resulted in hepatic necrosis.
0.2.10 GENITOURINARY
  • 0.2.10.1 ACUTE EXPOSURE
    • A) Chlorobenzene is nephrotoxic in animal studies.
0.2.20 REPRODUCTIVE HAZARDS
  • A) In rat and rabbit inhalational studies, chlorobenzene was considered to lack embryonic and fetal toxicity.
0.2.21 CARCINOGENICITY
  • 0.2.21.1 IARC CATEGORY
    • A) IARC Carcinogenicity Ratings for CAS108-90-7 (International Agency for Research on Cancer (IARC), 2016; International Agency for Research on Cancer, 2015; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010a; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2008; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2007; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2006; IARC, 2004):
      • 1) Not Listed
  • 0.2.21.2 HUMAN OVERVIEW
    • A) Existing data are inadequate to define the potential for chlorobenzene exposures to cause cancer in humans and animals.
0.2.22 GENOTOXICITY
  • A) Existing data do not support genotoxicity in humans following exposures.
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