Indole-3-Acetic Acid from Canada
Indole-3-acetic acid (auxin) contains a bicyclic structure with a pyrrole ring fused to benzene, featuring nitrogen hetero-atom only in the five-membered ring. Classified as modified aromatic under HTS 2933.99.82. Plant growth regulator used in agriculture.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• FIFRA labeling for pesticide use; stability data for acid form; avoid classification as hormone per 2937 note