Isobutyric Acid from Canada
Isobutyric acid (2-methylpropanoic acid) is a saturated acyclic monocarboxylic acid used in organic synthesis, flavorings, and as an intermediate for pharmaceuticals. It falls under HTS 2915.90.18.90 as a saturated acyclic monocarboxylic acid not elsewhere specified in heading 2915. This classification follows Chapter 29 notes for separate chemically defined organic compounds.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6095.8%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
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
• Provide Safety Data Sheets (SDS) and purity certificates to verify chemical identity and compliance with TSCA regulations
• Ensure proper Hazard Class 8 labeling for corrosive properties during transport
• Avoid misclassification as aromatic acids (2916) by confirming acyclic saturated structure via COA