Isobutyric Acid from Canada
Isobutyric acid (2-methylpropanoic acid) is a saturated acyclic monocarboxylic acid used in organic synthesis, flavor production, and as an intermediate for pharmaceuticals. It falls under HTS 2915.90.50 as a chemically defined saturated acyclic monocarboxylic acid not specifically named elsewhere in heading 2915.
Duty Rate — Canada → United States
13.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Verify purity certificate (≥98%) to confirm classification as chemically defined compound per Chapter 29 note (a)
• Include Material Safety Data Sheet (MSDS) showing it's not halogenated/sulfonated to avoid reclassification
• Declare exact CAS number (79-31-2) on entry documents to prevent customs disputes