2903.78.00.00/Perfluoro-n-octanesulfonyl Fluoride/Japan

Perfluoro-n-octanesulfonyl Fluoride from Japan

C8F17SO2F, perhalogenated sulfonyl fluoride with acyclic fluorocarbon chain. 2903.78.00.00 classification as perhalogenated derivative; sulfur function secondary to halogenation. Key intermediate for PFOS production.

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%

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Import Tips

• Extremely reactive with moisture; ship under inert atmosphere

• CAS 30708-42-0 declaration mandatory due to specific PFOS regulations

• Special UN 3265 shipping classification for corrosive liquid, acidic