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Parathion
CAS RN:
56-38-2
Carcinogenicity EvidenceClassification of carcinogenicity: 1) evidence in humans: no adequate data; 2) evidence in animals: limited. Overall summary evaluation of carcinogenic risk to humans is Group 3: The agent is not classifiable as to its carcinogenicity to humans. /From table/ Cancer Classification: Group C Possible Human Carcinogen CLASSIFICATION: C; possible human carcinogen. BASIS FOR CLASSIFICATION: Increased adrenal cortical tumors in female and male Osborne-Mendel rats and positive trends for thyroid follicular adenomas and pancreatic islet-cell carcinomas in male rats in one study. HUMAN CARCINOGENICITY DATA: None. ANIMAL CARCINOGENICITY DATA: Limited. A4; Not classifiable as a human carcinogen. |