2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]azo]-3-hydroxy- (Pigment Red 5)

CAS Registry Number 6410-41-9

What is it?

  • 2-Naphthalenecarboxamide, N-(5-chloro-2,4-dimethoxyphenyl)-4-[[5-[(diethylamino)sulfonyl]-2-methoxyphenyl]azo]-3-hydroxy-, also known as Pigment Red 5, is an industrial chemical.

How is it used?

  • Pigment Red 5 is used primarily as a colour pigment in plastics, inks, paints and textiles. It is also used in cosmetics, soaps and detergents, and in rubber and fabricated metal products and electronic equipment.
  • Based on the most recent data available, Pigment Red 5 is not manufactured in Canada, but is imported into Canada.

Why did the Government of Canada assess it?

  • Pigment Red 5 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.

How is it released to the environment?

  • Pigment Red 5 may be released to waste water during industrial processing and consumer use.

What is the Government of Canada doing?

  • The Government of Canada has conducted an evaluation of Pigment Red 5 based on science, called a screening assessment.
  • The Government of Canada has determined that Pigment Red 5 is not harmful to the environment, because it was found not to accumulate and not to cause harm to organisms. Therefore, no further action will be taken on Pigment Red 5.
  • The final screening assessment report was published on March 7, 2009.

What should Canadians do?

  • Because Pigment Red 5 is not a concern for the environment or human health, Canadians do not need to take any specific actions with respect to how they use this chemical or products that contain that chemical.
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