</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Glyoxal Polymerization Inhibited Solution from Canada

40% glyoxal with proprietary polymerization inhibitor for long-term storage stability. Inhibitor qualifies under Chapter 29 note (f) as preservation-only additive. Specific HTS 2912.19.30.00 for chemically defined glyoxal.

Duty Rate — Canada → United States

13.7%

Rate breakdown

9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada

Import Tips

Disclose inhibitor chemical identity and concentration (<0.2%) in technical data sheet

Stability test results demonstrating 12+ month shelf life support classification

Avoid phosphate inhibitors that trigger water treatment reclassification