New chemicals added to Domestic Substances List

Summary#

Order 2026-87-01-01 Amending the Domestic Substances List (SOR/2026-1) adds several chemicals to Canada’s inventory of domestic substances. The order was registered on January 13, 2026 and published in the Canada Gazette on January 28, 2026, and it took effect on the day it was registered.

What it does#

• Adds 2 entries to Part 1 of the Domestic Substances List:
  • 26099-71-8 (listed as N‑P)
  • 51404-72-9 (listed as N)
• Adds 6 entries to Part 3 of the Domestic Substances List (each shown with its CAS number and the chemical name as published):
  • 19803-1 (listed as N‑P) — Alkanoic acid, monoester with 1,2,3‑propanetriol, polymer with 1,2‑ethanediamine, α‑hydro‑ω‑hydroxypoly(oxy‑1,4‑butanediyl), hydroxy‑(hydroxymethyl)‑methylalkanoic acid, 5‑isocyanato‑1‑(isocyanatomethyl)‑1,3,3‑trimethylcyclohexane and [(1‑methyl‑1,2‑ethanediyl)bis(oxy)]bis[propanol]
  • 19804-2 (listed as N‑P) — Fatty acids, alkene, dimers, polymers with alkyl prop‑2‑enoate, butyl methacrylate, 2‑ethyl‑2‑[(2‑propen‑1‑yloxy)methyl]‑1,3‑propanediol, 1,6‑substituted alkane, substituted‑carbomonocyclic, Me methacrylate, methacrylic acid, 1,1’‑methylenebis[4‑isocyanatocyclohexane] and neopentyl glycol, diethanolamine‑blocked, compds. with 2‑(dialkylamino)ethanol
  • 19805-3 (listed as N‑P) — 2‑Propenoic acid, 2‑methyl‑, heteromonocyclicalkyl ester polymer with alkene, alkenyl alkanoate and ethenylbenzene
  • 19806-4 (listed as N‑P) — 1,3‑Benzenedicarboxylic acid, polymer with alkanediol and 2,2‑dimethyl‑1,3‑propanediol
  • 19807-5 (listed as N‑P) — 1,3‑Benzenedicarboxylic acid, polymer with 1,4‑benzenedicarboxylic acid, butanedioic acid, 2,2‑dimethyl‑1,3‑propanediol and alkyldiol
  • 19808-6 (listed as N‑P) — Dinon‑metallic acid, sodium salt (1:2), reaction products with cycloalkanone‑formaldehyde polymer
• The Canada Gazette note says the Ministers reviewed information submitted under the Canadian Environmental Protection Act, 1999 and that the statutory assessment period expired with no outstanding conditions. The order therefore adds these substances to the list.

Who's affected#

• Chemical manufacturers and importers who make or bring these specific chemicals into Canada.
• Suppliers, distributors and downstream users (companies that use these chemicals in products or processes).
• Testing laboratories and consultants who help companies meet reporting or assessment needs.
• Environment and public‑health regulators who track substances on the Domestic Substances List.
  It is not clear from the notice which specific industries (for example, coatings, plastics, adhesives, or others) will use these particular chemicals.

Why it matters#

• The Domestic Substances List is Canada’s official inventory of substances that are known to be in the Canadian marketplace. Adding a substance to it means the government recognizes it as an existing (rather than “new”) substance in Canada.
• For businesses, that recognition can affect what reporting or notification rules apply in the future. It can also shape whether and how a substance is chosen for further risk assessment or regulatory attention.
• For the public, the change is mainly a tracking and regulatory step: it helps authorities know what chemicals are present in Canada and supports future work on safety and environmental risk.