Pharma Intermediate Isoprene (98.5%) from Canada
98.5% pure isoprene serving as intermediate for pharmaceutical terpenoid synthesis, USP-compliant purity. Under HTS 2901.24.20.00 as high-purity acyclic unsaturated hydrocarbon per Chapter 29 definitions.
Duty Rate — Canada → United States
10%
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
• Include DMF reference if FDA-regulated; segregate from other chemicals in shipping
• Common issue: DMF filing delays—pre-register