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Chapter 2904 — HTS Headings
Subheadings
2904.10Derivatives containing only sulfo groups, their salts and ethyl esters:
→2904.20Derivatives containing only nitro or only nitroso groups:
→2904.31.00.00Perfluorooctane sulfonic acid
→2904.32.00.00Ammonium perfluorooctane sulfonate
→2904.33.00.00Lithium perfluorooctane sulfonate
→2904.34.00.00Potassium perfluorooctane sulfonate
→2904.35.00.00Other salts of perfluorooctane sulfonic acid
→2904.36.00.00Perfluorooctane sulfonyl fluoride
→2904.91.00.00Trichloronitromethane (chloropicrin)
→2904.99Other:
→