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99% Pure PFOSF Technical Grade

Technical grade perfluorooctane sulfonyl fluoride at 99% purity, a fluorinated sulfonyl compound under HTS 2904.36.00.00 due to its perfluorinated structure and sulfonyl fluoride functional group. Used primarily as a synthetic precursor for PFOS-based surfactants in industrial applications.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+35.0%38.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

2904.36.00Same rate: 38.7%

If same code applies regardless of purity above 98%

Heading covers all grades of PFOSF; purity affects value but not classification.

3813.00Lower: 13.7% vs 38.7%

If formulated as fire-fighting foam additive

PFOSF mixtures for fire extinguishers are excluded from Chapter 29 per chapter notes.

2903.69Lower: 13.7% vs 38.7%

If classified by parent fluorocarbon rather than sulfonyl function

Error-prone alternative; sulfonyl group takes precedence per classification rules.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Include third-party lab analysis confirming 99% purity to prevent reclassification as an impure mixture

Register with US EPA under TSCA for PFOSF imports exceeding 100 lbs annually

Package in fluoropolymer-lined containers to prevent decomposition during transport

Related Products under HTS 2904.36.00.00

Perfluorooctane Sulfonyl Fluoride (PFOSF)

Perfluorooctane sulfonyl fluoride (PFOSF) is a perfluorinated organic compound with the formula C8F17SO2F, classified under HTS 2904.36.00.00 as a sulfonated and halogenated derivative of hydrocarbons. It serves as a key intermediate in synthesizing perfluorooctane sulfonic acid salts and other fluorochemicals used in surface treatments.

Perfluorooctane Sulfonyl Fluoride with Stabilizer

Stabilized perfluorooctane sulfonyl fluoride containing added inhibitors for transport safety, still classified under HTS 2904.36.00.00 per Chapter 29 note (f) allowing stabilizers. The core compound remains the chemically defined C8F17SO2F used in fluoropolymer manufacturing.

Industrial PFOSF for Surfactant Synthesis

High-volume industrial grade perfluorooctane sulfonyl fluoride specifically for conversion to PFOS surfactants, classified under HTS 2904.36.00.00 as a perfluorinated sulfonyl fluoride. Meets Chapter 29 requirements for chemically defined halogenated sulfonated hydrocarbons.

PFOSF Anhydrous Reagent Grade

Anhydrous reagent-grade perfluorooctane sulfonyl fluoride for laboratory synthesis of fluorinated compounds, under HTS 2904.36.00.00 for its sulfonated, perfluorinated structure. Supplied in small quantities with high purity specifications.

Distilled Perfluorooctane Sulfonyl Fluoride

Vacuum-distilled perfluorooctane sulfonyl fluoride achieving ultra-high purity (>99.5%), classified under HTS 2904.36.00.00 as the pure sulfonyl fluoride derivative. Used in precision fluorochemical manufacturing processes.

PFOSF with Emetic Identifier

Perfluorooctane sulfonyl fluoride with trace emetic additive for safety identification, permitted under HTS 2904.36.00.00 per Chapter 29 note (g). The addition facilitates hazard recognition without changing general chemical use.