</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

2,2,4-Trimethylpentane (Isooctane) from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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

2,2,4-Trimethylpentane (Isooctane) from Japan — Import Duty Rate | HTS 2901.10.50.00