2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]- (Pigment Red 3)

CAS Registry Number 2425-85-6

What is it?

  • 2-Naphthalenol, 1-[(4-methyl-2-nitrophenyl)azo]-, also known as Pigment Red 3, is an industrial chemical.

How is it used?

  • Pigment Red 3 is primarily used in paints, and has been reported in 3 cosmetics products: a nail polish and two soaps.
  • Based on the most recent data available, Pigment Red 3 is manufactured in and imported into Canada.

Why did the Government of Canada assess it?

  • Pigment Red 3 was identified as a potential concern to the environment based on available information regarding possible persistence, accumulation and potential to cause harm to the environment.
  • The substance was also believed to have a high potential for exposure to Canadians.

How is it released to the environment?

  • This substance may be released to the environment during product manufacturing and industrial processes. Releases are also expected to occur from flaking and chipping of paints during industrial and consumer use.

How are Canadians exposed to it?

  • Canadians may be exposed to Pigment Red 3 through the use of certain consumer products such as paints.

What is the Government of Canada Doing?

  • The Government of Canada has conducted an evaluation of Pigment Red 3 based on science, called a screening assessment.
  • The Government of Canada has determined that Pigment Red 3 is not harmful to the environment but it is considered to be harmful to human health.
  • The Government of Canada will prevent its future use in cosmetics by proposing to add Pigment Red 3 to the Cosmetic Ingredient "Hotlist".
  • The Government will investigate whether action is required with regard to consumer exposures from use of paints containing Pigment Red 3.
  • The final screening assessment report and proposed risk management approach document were published on March 7, 2009. The proposed risk management approach is subject to a 60-day public comment period from March 7 to May 6, 2009.

What should Canadians do?

  • Canadians should always read and follow safety instructions provided on product labels, particularly the advice to use in a well-ventilated area and to wear protective clothing (when applicable)
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