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Right to Know Hazardous Substance Fact Sheets


Below is a list (A-Z) of more than 300 chemical carcinogens. A chemical meets the definition of a carcinogen if it is listed as such by the agencies shown in the following table. The table also shows how each agency classifies chemicals as to their carcinogenic risk to humans.
Agency Carcinogen Categories
International Agency for Research on Cancer (IARC)
  • Group 1 - Human Carcinogen
  • Group 2A - Probable Human Carcinogen
  • Group 2B - Possible Human Carcinogen
National Toxicology Program (NTP)
  • Group K - Known Human Carcinogens
  • Group R - Reasonably Anticipated Human Carcinogens
Environmental Protection Agency's Integrated Risk Information System (IRIS)
  • Group A - Human Carcinogen
  • Group B1 - Probable Human Carcinogen (sufficient animal and limited human evidence)
  • Group B2 - Probable Human Carcinogen (sufficient animal and no human evidence)
  • Group C - Possible Human Carcinogen
List of Chemical Carcinogens starting with 'A'
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Click on the specific substance number to view the corresponding Fact Sheet.
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RTK Substance No Chemical Name Carcinogen Categories
(see above table)		 Other Language
0001 ACETALDEHYDE 2B R B2 español
2890 ACETAMIDE 2B español
0010 2-ACETYLAMINOFLUORENE R español
0022 ACRYLAMIDE 2A R B2 español
0024 ACRYLONITRILE 2B R B1 español
0029 AFLATOXINS 1 K español
0033 ALDRIN B2 español
0039 ALLYL CHLORIDE C español
0069 2-AMINOANTHRAQUINONE R español
0072 4-AMINODIPHENYL 1 K español
0076 1-AMINO-2-METHYLANTHRAQUINONE R
0083 AMITROLE R español
0086 AMMONIUM ARSENATE K A español
0095 AMMONIUM CHROMATE 1 K A español
0097 AMMONIUM DICHROMATE 1 K A español
0135 ANILINE B2 español
1421 o-ANISIDINE 2B
0149 ANTIMONY TRIOXIDE 2B español
0150 ARAMITE 2B B2
0152 ARSENIC 1 K A español
0153 ARSENIC ACID 1 K A español
0154 ARSENIC BROMIDE 1 K A
0156 ARSENIC DISULFIDE 1 K A español
0157 ARSENIC IODIDE 1 K A español
0158 ARSENIC PENTOXIDE 1 K A español
0159 ARSENIC TRICHLORIDE 1 K A español
0161 ARSENIC TRIOXIDE 1 K A español
0163 ARSINE 1 K A español
0164 ASBESTOS 1 K A español
3197 ASPHALT, OXIDIZED 2B español
0171 ATRAZINE 2B español
2894 AURAMINE 2B español
0173 AZASERINE 2B