Four Chemicals Added to Domestic Substances List

Summary#

This is Order 2025-87-08-01 Amending the Domestic Substances List, a federal order that adds four chemical substances to the Domestic Substances List. It was signed by Julie Dabrusin, Minister of the Environment, on August 27, 2025 and was registered on August 29, 2025, the day it comes into force.

What it does#

• Adds four new entries to Part 3 of the Domestic Substances List. The entries added are:
  • 19783-1 N-P Alkanal, polymers with alkylphenol and alkene oxide
  • 19784-2 N-P Alkenoic acid, polymer with α-alkeneyl-ω-hydroxypoly(oxy-1,2-ethanediyl)
  • 19785-3 N 2-Propenoic acid, 2-methyl-[phosphinicobis(oxy-ethanediyl)] ester, telomer with methyl 2-methyl-2-propenoate, (phosphonooxy)ethyl methyl propenoate, 2-propenoic acid, sodium (disulfite) (2:1) and sodium 2-methyl-2-[(1-oxo-2-propen-1-yl) amino]-1-propanesulfonate (1:1), sodium salt, peroxydisulfuric acid ([HO)S(O)2]2O2) sodium salt (1:2)-initiated
  • 19789-7 N-P Alkanedioic acid, polymer with alkanedioic acid, 1,1′-methylenebis[4-isocyanatobenzene] and alkanediol
• The Order was made under the Canadian Environmental Protection Act, 1999 and takes effect when it was registered.

Who's affected#

• Chemical manufacturers and importers who make, sell, or bring these specific substances into Canada.
• Downstream users (companies that use these chemicals in products or processes).
• Environmental and regulatory staff who track the country's inventory of chemical substances.
• For the general public, effects are indirect unless you work with these chemicals or products that contain them.

Why it matters#

• The Domestic Substances List is the official inventory Canada uses to record which chemicals are known to be in commerce. Adding a substance updates that inventory.
• Businesses that handle the newly listed substances may need to check whether the listing changes any reporting or compliance steps they follow (the order itself does not explain those details).
• The federal government notes a Regulatory Impact Analysis Statement for this Order is published elsewhere for more background.