National Toxicology Program known carcinogen list

Benzene is a clear, colorless, flammable liquid with a pleasant characteristic odor, bp 80.1°C, flash point -11.1°C, and ignition temperature 538°C. Benzene has been found to be very toxic and is on the list of Known to Be Human Carcinogens published every two years by the Department of Health and Human Services under the National Toxicology Program (NTP). There are four top 50 chemicals on this worst carcinogen list benzene 1,3-butadiene ethylene oxide and vinyl chloride. There are also four chemicals in the top 50 on the Reasonably Anticipated to Be Human Carcinogens list acrylonitrile, ethylene dichloride, formaldehyde, and propylene oxide. 

TCDD was added to the known carcinogen list of the National Toxicology Program. 

The chemical should not contain any chemicals that are a carcinogen or that are known to cause reproductive toxicity. Carcinogens are defined as those chemicals listed in the current edition of the Annual Report on Carcinogens, U.S. Department of Health and Human Services, National Toxicology Program. Chemicals known to cause reproductive toxicity, for example, are defined as those hsted by the state of California under the Safe Drinking Water and Toxic Enforcement Act of 1986 (Cah-fomia Code of Regulations, Title 22, Division 2, Subdivision 1, Chapter 3, Sections 1200, et seq.)... 

Chronic effects are not known and diketene was not found to be carcinogenic on skin application, injection beneath the skin, or gastric feeding in mice and rats (132—134). It is not listed as a carcinogen by International Agency for Research on Cancer (LA.RC), the National Toxicology Program (U.S.),... 

NATIONAL TOXICOLOGY PROGRAM LIST OF CARCINOGENS (2004) 11 ANNUAL REPORT 939 Part A. Known to be Human Carcinogens, (continued)... 

National Toxicology Program (NTP). The part of the U.S. Public Health Service, that publishes an annual report containing a list of all substances which either are known carcinogens or which may reasonably be anticipated to be carcinogens... nephrotoxin. Substance that is toxic to the kidneys. 

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