Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated
31 declarable lines
Heading 2904 covers sulfonated, nitrated and nitrosated derivatives of hydrocarbons, including halogenated versions of those derivatives. The heading splits first by the type of group added: subheadings 2904.10 for sulfo-only derivatives, 2904.20 for nitro-only or nitroso-only derivatives, 2904.31 through 2904.36 for perfluorooctane sulfonic acid and related compounds, and 2904.91 and 2904.99 for other mixed derivatives. Within each group, named chemical lines come before basket lines that separate aromatic from other products.
Products in this heading
- p-Nitrotoluene
- Trinitrotoluene (TNT)
- Benzenesulfonyl chloride
- p-Toluenesulfonyl chloride
- Musk xylol and other artificial musks
- o-Nitrochlorobenzene
- Chloropicrin (trichloronitromethane)
- Perfluorooctane sulfonic acid
How to choose the right subheading
- Identify which group was added to the hydrocarbon: only sulfo, only nitro or nitroso, or a mix of groups.
- Check whether the product matches a specifically named chemical line, since named lines take priority over the aromatic and other basket lines.
- Determine whether the aromatic or the other basket line applies when no chemical is named.
- Check whether the product is one of the perfluorooctane sulfonic acid items covered by subheadings 2904.31 through 2904.36.
- Confirm the starting material is a hydrocarbon; if it is a phenol, alcohol or acid, a different heading applies.
Often confused with
- Heading 2908Nitrophenol
It is a derivative of a phenol, not of a hydrocarbon, so it falls in the phenol derivatives heading.
- Heading 2903Chlorobenzene or other halogenated hydrocarbons with no sulfo or nitro group
Plain halogenation alone stays in heading 2903.
- Heading 2921Toluidines and other nitro compounds converted to amines
Once an amino group is present the product is an amine-function compound.
- Heading 2935Sulfonamides
Sulfonamides have their own heading and are not hydrocarbon derivatives of heading 2904.
- Heading 2930Thiols and other organo-sulfur compounds without a sulfonic acid function
Other organo-sulfur compounds are classified in heading 2930.
Frequently asked questions
What is the duty on trinitrotoluene?
Trinitrotoluene is classified under 2904.20.20.00 and the general (MFN) rate is Free.
How do I classify nitrated benzene or nitrated naphthalene?
Nitrated benzene, nitrated toluene other than p-nitrotoluene, and nitrated naphthalene go under 2904.20.35.00 at a general (MFN) rate of 5.5%. Chloropicrin, a nitrated halogenated hydrocarbon with a different structure, goes under 2904.91.00.00 at 3.7%.
Guide written from the official schedule text. Rates quoted are general (MFN) rates; check the line page for trade agreement rates and the classification of your exact product.
All lines in heading 2904
- 2904.10.04.00Derivatives containing only sulfo groups, their salts and ethyl esters / 2-Anthracenesulfonic acid5.5%
- 2904.10.08.00Derivatives containing only sulfo groups, their salts and ethyl esters / Benzenesulfonyl chloride5.5%
- 2904.10.10.00m-Benzenedisulfonic acid, sodium salt; 1,5-Naphthalenedisulfonic acid; andp-Toluenesulfonyl chloride5.5%
- 2904.10.15.00Mixtures of 1,3,6-naphthalenetrisulfonic acid and 1,3,7-naphthalenetrisulfonic acid5.5%
- 2904.10.32.00Products described in additional U.S. note 3 to section VI5.5%
- 2904.10.37.00Derivatives containing only sulfo groups, their salts and ethyl esters / Aromatic / Other5.5%
- 2904.10.50.00Derivatives containing only sulfo groups, their salts and ethyl esters / Other4.2%
- 2904.20.10.00Derivatives containing only nitro or only nitroso groups / p-Nitrotoluene5.5%
- 2904.20.15.00Derivatives containing only nitro or only nitroso groups / p-Nitro-o-xylene5.5%
- 2904.20.20.00Derivatives containing only nitro or only nitroso groups / TrinitrotolueneFree
- 2904.20.30.005-tert-Butyl-2,4,6-trinitro-m-xylene (Musk xylol) and other artificial musks5.5%
- 2904.20.35.00Nitrated benzene, nitrated toluene (except p-nitrotoluene), or nitrated naphthalene5.5%
- 2904.20.40.00Products described in additional U.S. note 3 to section VI5.5%
- 2904.20.45.00Derivatives containing only nitro or only nitroso groups / Aromatic / Other5.5%
- 2904.20.50.00Derivatives containing only nitro or only nitroso groups / Other5.5%
- 2904.31.00.00Perfluorooctane sulfonic acid, its salts and perfluorooctane sulfonyl fluoride / Perfluorooctane sulfonic acid3.7%
- 2904.32.00.00Ammonium perfluorooctane sulfonate3.7%
- 2904.33.00.00Lithium perfluorooctane sulfonate3.7%
- 2904.34.00.00Potassium perfluorooctane sulfonate3.7%
- 2904.35.00.00Perfluorooctane sulfonic acid, its salts and perfluorooctane sulfonyl fluoride / Other salts of perfluorooctane sulfonic acid3.7%
- 2904.36.00.00Perfluorooctane sulfonyl fluoride3.7%
- 2904.91.00.00Trichloronitromethane (chloropicrin)3.7%
- 2904.99.04.00o-Nitrochlorobenzene; andp-Nitrochlorobenzene5.5%
- 2904.99.08.00Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated / Monochloromononitrobenzenes / Other5.5%
- 2904.99.15.004-Chloro-3-nitro-α,α,α-trifluorotoluene; 2-Chloro-5-nitro-α,α,α-trifluorotoluene; and 4-Chloro-3,5-dinitro-α,α,α-trifluorotoluene5.5%
- 2904.99.20.00Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated / Nitrotoluenesulfonic acids5.5%
- 2904.99.30.001-Bromo-2-nitrobenzene; 1,2-Dichloro-4-nitrobenzene and o-Fluoronitrobenzene5.5%
- 2904.99.35.004,4'-Dinitrostilbene-2,2'-disulfonic acid5.5%
- 2904.99.40.00Products described in additional U.S. note 3 to section VI5.5%
- 2904.99.47.00Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated / Aromatic / Other5.5%
- 2904.99.50.00Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated / Other3.7%