Heptane (Shale Oil Derived) from Mexico
n-Heptane, a C7H16 saturated acyclic hydrocarbon, extracted from shale oil retorting processes. Meets HTS 2901.10.40.00 criteria as shale oil-derived saturated hydrocarbon other than butanes. Serves as reference fuel (100 octane number) and chromatographic solvent.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.94, articles the product of Mexico, as provided for in U.S. note 52 to this subchapter
Import Tips
• Provide shale oil processing documentation; rare source requires origin verification
• 99%+ purity required for solvent grade; lower grades may shift to Chapter 27
• Class 3 flammable liquid; ensure proper UN 1206 packaging certification