Chemical information

CAS — 1162-65-8 (aflatoxin B 1 ); 7220-81-7 (aflatoxin B 2 ); 1165-39-5 (aflatoxin G 1 ); 7241-98-7 (aflatoxin G 2 ); 6795-23-9 (aflatoxin M 1 ); 6885-57-0 (aflatoxin M 2 ).


Aflatoxins are toxic metabolites produced by many strains of Aspergillus flavus and A. parasiticus, growing on many vegetable foods, notably maize and peanuts. A number of forms, including aflatoxins B1, B2, G1, and G2 have been identified. Aflatoxins M1and M2 are metabolites produced by animals after ingestion of aflatoxins B1 and B2; they may be detected in cows’ milk. Aflatoxins can cause hepatitis and cirrhosis. They have been implicated in liver cancer, and may act as co-carcinogens with hepatitis B virus. Aflatoxin B1 is reported to be one of the most potent carcinogens known in animals. It has been reported that aflatoxins have been developed in some countries as biological weapons.
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2. Jackson PE, Groopman JD. Aflatoxin and liver cancer. Baillieres Best Pract Res Clin Gastroenterol 1999; 13: 545–55
3. Peraica M, et al. Toxic effects of mycotoxins in humans. Bull WHO 1999; 77: 754–66
4. Pitt JI. Toxigenic fungi and mycotoxins. Br Med Bull 2000; 56: 184–92.
Published November 17, 2018.