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International Agency for Research on Cancer (IARC) - Summaries & Evaluations

YELLOW OB

VOL.: 8 (1975) (p. 287)

CAS No.: 131-79-3
Chem. Abstr. Name: 1-(2-Methylphenyl)azo-2-naphthalenamine

5. Summary of Data Reported and Evaluation

5.1 Animal carcinogenicity data

Yellow OB was tested in mice by subcutaneous injection and in rats by oral and subcutaneous administration. Although the feeding experiments in rats and the subcutaneous injection studies in mice were negative, the colour produced local tumours in rats following its subcutaneous administration.

5.2 Human carcinogenicity data

No case reports or epidemiological studies were available to the Working Group.

Subsequent evaluation: Suppl. 7 (1987) (p. 74: Group 3)

For definition of Groups, see Preamble Evaluation.

Synonyms