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

2-Naphthylamine-3,6-disulfonic Acid (R Acid) from Canada

R Acid is a disulfonated derivative of 2-naphthylamine included in HTS 2921.45.60.00 per U.S. note 3. Critical intermediate for direct and reactive dyes used in cotton dyeing.

Duty Rate — Canada → United States

16.5%

Rate breakdown

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

Import Tips

Label with GHS pictograms for skin corrosion and aquatic toxicity hazards

Verify country of origin as antidumping duties may apply to certain dye intermediates

Use refrigerated containers if stability data indicates temperature sensitivity

2-Naphthylamine-3,6-disulfonic Acid (R Acid) from Canada — Import Duty Rate | HTS 2921.45.60.00