CAS RN: 75-07-0

Carcinogenicity Evidence

Acetaldehyde is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals.
Evaluation: There is inadequate evidence in humans for the carcinogenicity of acetaldehyde. There is sufficient evidence in experimental animals for the carcinogenicity of acetaldehyde. Overall evaluation: Acetaldehyde is possibly carcinogenic to humans (Group 2B).
A2: Suspected human carcinogen.
CLASSIFICATION: B2; probable human carcinogen.
BASIS FOR CLASSIFICATION: Based on increased incidence of nasal tumors in male and female rats and laryngeal tumors in male and female hamsters after inhalation exposure.
ANIMAL CARCINOGENICITY DATA: Sufficient. /based on former classification system/
Cancer Classification: Group B2 Probable Human Carcinogen
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