# HTS 2904: Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated:

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Source: [2026 HTS Revision 21 (October 9, 2026)](https://hts.usitc.gov/search?query=2904). Additional duties by country of origin may apply; estimate a shipment's full duty with the tariff calculator: https://geopax.app/tariffs/calculator

## 2904: Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated:

| Code | Description | General | Special | Column 2 | Units |
| --- | --- | --- | --- | --- | --- |
| 2904 | Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: |  |  |  |  |
| 2904.10 |   Derivatives containing only sulfo groups, their salts and ethyl esters: |  |  |  |  |
| 2904.10.04.00 |     2-Anthracenesulfonic acid | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.10.08.00 |     Benzenesulfonyl chloride | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.10.10.00 |     m-Benzenedisulfonic acid, sodium salt; 1,5-Naphthalenedisulfonic acid; andp-Toluenesulfonyl chloride | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 41.5% | kg |
| 2904.10.15.00 |     Mixtures of 1,3,6-naphthalenetrisulfonic acid and 1,3,7-naphthalenetrisulfonic acid | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 40% | kg |
|  |     Other: |  |  |  |  |
|  |       Aromatic: |  |  |  |  |
| 2904.10.32.00 |         Products described in additional U.S. note 3 to section VI | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, K,KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.10.37.00 |         Other | 5.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.10.50.00 |       Other | 4.2% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 25% | kg |
| 2904.20 |   Derivatives containing only nitro or only nitroso groups: |  |  |  |  |
| 2904.20.10.00 |     p-Nitrotoluene | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 40% | kg |
| 2904.20.15.00 |     p-Nitro-o-xylene | 5.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 41.5% | kg |
| 2904.20.20.00 |     Trinitrotoluene | Free |  | 15.4¢/kg + 45% | kg |
| 2904.20.30.00 |     5-tert-Butyl-2,4,6-trinitro-m-xylene (Musk xylol) and other artificial musks | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 57% | kg |
| 2904.20.35.00 |     Nitrated benzene, nitrated toluene (except p-nitrotoluene), or nitrated naphthalene | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 40% | kg |
|  |     Other: |  |  |  |  |
|  |       Aromatic: |  |  |  |  |
| 2904.20.40.00 |         Products described in additional U.S. note 3 to section VI | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.20.45.00 |         Other | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.20.50.00 |       Other | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 30.5% | kg |
|  |   Perfluorooctane sulfonic acid, its salts and perfluorooctane sulfonyl fluoride: |  |  |  |  |
| 2904.31.00.00 |     Perfluorooctane sulfonic acid | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.32.00.00 |     Ammonium perfluorooctane sulfonate | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.33.00.00 |     Lithium perfluorooctane sulfonate | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.34.00.00 |     Potassium perfluorooctane sulfonate | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.35.00.00 |     Other salts of perfluorooctane sulfonic acid | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.36.00.00 |     Perfluorooctane sulfonyl fluoride | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
|  |   Other: |  |  |  |  |
| 2904.91.00.00 |     Trichloronitromethane (chloropicrin) | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
| 2904.99 |     Other: |  |  |  |  |
|  |       Monochloromononitrobenzenes: |  |  |  |  |
| 2904.99.04.00 |         o-Nitrochlorobenzene; andp-Nitrochlorobenzene | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +59% | kg |
| 2904.99.08.00 |         Other | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P ,PA,PE,S,SG) | 15.4¢/kg + 59% | kg |
| 2904.99.15.00 |       4-Chloro-3-nitro-α,α,α-trifluorotoluene; 2-Chloro-5-nitro-α,α,α-trifluorotoluene; and 4-Chloro-3,5-dinitro-α,α,α-trifluorotoluene | 5.5% | Free (A*,AU,BH,CL,CO,D,E,IL,JO,K,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +51% | kg |
| 2904.99.20.00 |       Nitrotoluenesulfonic acids | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 74.5% | kg |
| 2904.99.30.00 |       1-Bromo-2-nitrobenzene; 1,2-Dichloro-4-nitrobenzene and o-Fluoronitrobenzene | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P ,PA,PE,S,SG) | 15.4¢/kg + 40% | kg |
| 2904.99.35.00 |       4,4'-Dinitrostilbene-2,2'-disulfonic acid | 5.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg +50% | kg |
|  |       Other: |  |  |  |  |
|  |         Aromatic: |  |  |  |  |
| 2904.99.40.00 |           Products described in additional U.S. note 3 to section VI | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.99.47.00 |           Other | 5.5% | Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG) | 15.4¢/kg + 51% | kg |
| 2904.99.50.00 |         Other | 3.7% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 25% | kg |
|  |   II. ALCOHOLS AND THEIR HALOGENATED, SULFONATED, NITRATED OR NITROSATED DERIVATIVES |  |  |  |  |