2,2,4-Trimethylpentane (Isooctane) from Mexico
Isooctane, or 2,2,4-trimethylpentane, is a highly branched saturated acyclic C8 hydrocarbon used as a gasoline octane booster and reference fuel. Falls under HTS 2901.10.5000 as 'other' saturated acyclic hydrocarbons. Supplied with trace stabilizers for transport safety.
Duty Rate — Mexico → United States
10%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Include octane number certification; critical for fuel additive verification during customs exam
• Classify as UN1262, PG II; ensure stainless steel or approved plastic containers for compatibility
• Document as chemically defined compound, not mixture, to prevent reclassification to Chapter 27 or 38