Glyoxal Polymerization Inhibited Solution from China
40% glyoxal with proprietary polymerization inhibitor for long-term storage stability is classified under tariff item 2912.19.00. The inhibitor qualifies under Chapter 29 note 1(f) as a preservation-only additive, and the product remains a chemically defined glyoxal.
Duty Rate — China → Canada
0%
Import Tips
• The inhibitor must be necessary for preservation or transport; document this to customs
• Provide the inhibitor's identity and concentration
• Ensure the product is not rendered suitable for a specific use by the additive