Chemicals Added To Federal List Of Carcinogens | Chemical & Engineering News
Volume 92 Issue 40 | p. 26 | Concentrates
Issue Date: October 6, 2014

Chemicals Added To Federal List Of Carcinogens

Department: Government & Policy
Keywords: Report on Carcinogens, cancer, toxicology

The National Toxicology Program (NTP) added three new chemicals to the “Report on Carcinogens,” the government’s warning list of known and potentially carcinogenic substances. The substances are 1-bromopropane, also known as n-propyl bromide, which is used in cleaning solvents and spray adhesives; cumene, which is used to make phenol and acetone; and a complex mixture of pentachlorophenol and by-products of its synthesis, which is used as a preservative to treat wooden utility poles. All three are listed as “reasonably anticipated to be a human carcinogen” in the latest version of the report, which NTP released last week. In addition, NTP upgraded the listing for o-toluidine, elevating its classification to a known carcinogen. Previously this substance was listed as “reasonably anticipated to be a human carcinogen.” o-Toluidine is used in making rubber, pesticides, and dyes, as well as some medical and consumer products. The “Report on Carcinogens,” now in its 13th edition, includes 243 listings.

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