Benzenesulfonic acid, [(9,10-dihydro-9,10-dioxo-1,4-anthracenediyl) bis(imino-4,1-phenyleneoxy)]bis-, disodium salt (Acid Green 40:1)

CAS Registry Number 70161-19-2

What is it?

  • Acid Green 40:1 is a dye.

How is it used?

  • Acid Green 40:1 is a green dye used in the textile industry.
  • Based on the most recent data available, Acid Green 40:1 is not in commerce in Canada.

Why did the Government of Canada assess It?

  • Acid Green 40:1 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.

What is the Government of Canada doing?

  • The Government of Canada has conducted an evaluation of Acid Green 40:1 based on science, called a screening assessment.
  • The evaluation showed that Acid Green 40:1 can stay in the environment for a long time. It can build up in the bodies of animals or within the food chain, and small amounts of Acid Green 40:1 can harm animals or plants that live in water.
  • However, the Government of Canada has reviewed information that indicates Acid Green 40:1 is not currently in commerce in Canada in significant quantities.
  • As a result, it is unlikely that Acid Green 40:1 is entering the environment as a result of commercial manufacture or use in this country.
  • The Government of Canada has implemented a Significant New Activity or SNAc provision for Acid Green 40:1 since it has the potential to cause harm in the environment. This requires that any proposed new uses of Acid Green 40:1 must be reassessed prior to the substance being manufactured in or brought into Canada.
  • The final screening assessment report was published on January 31, 2009.

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