</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →
2903.78.00.00/Perfluorodiglyme/Japan

Perfluorodiglyme from Japan

CF3(OCF2CF2)2OCF3, perfluorinated diether technically acyclic despite ether linkages. 2903.78.00.00 as perhalogenated acyclic hydrocarbon derivative per chapter scope. Specialty heat transfer fluid.

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%
Calculate with your customs valueVerify classification with AI

Import Tips

• Confirm acyclic classification vs cyclic perfluoroethers in 2939

• Boiling point 112°C; stable to 400°C but avoid Lewis acids

• Fully fluorinated; no hydrogen for FTIR confirmation of purity