What is HS-4 2904 used for?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-4 · Heading
2904 — Sulphonated, nitrated or nitrosated derivatives of hydrocarbons; whether or not halogenated
Chapter 29: Organic chemicals
Plain-language overview
Use HS-4 2904 when importing or exporting sulphonated, nitrated, or nitrosated derivatives of hydrocarbons, such as trichloronitromethane (chloropicrin). This code applies to various derivatives, including those that may be halogenated.
To choose the correct HS-6 line, consider the specific functional groups present in your product. For example, HS-6 290410 is for derivatives containing only sulpho groups, while HS-6 290420 covers those with only nitro or nitroso groups. Understanding these distinctions is crucial for proper classification.
If your product includes perfluorooctane sulphonate derivatives, you will need to differentiate among several HS-6 codes like 290431 for perfluorooctane sulphonic acid or 290432 for ammonium perfluorooctane sulphonate. Each has specific applications and regulatory requirements.
Keywords & topics
Useful terms traders and brokers use for this HS-4 heading.
sulphonated hydrocarbons · nitrated hydrocarbons · nitrosated hydrocarbons · trichloronitromethane · perfluorooctane sulphonate · HS-4 2904 classification · halogenated derivatives · importing sulphonated chemicals · exporting nitrated compounds · chemical trade regulations · hydrocarbon derivatives · HS-6 codes · chemical product classification · organic chemicals · trade compliance · chemical import codes
Examples
Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.
- Trichloronitromethane (chloropicrin) - HS-6 290491
- Perfluorooctane sulphonic acid - HS-6 290431
- Ammonium perfluorooctane sulphonate - HS-6 290432
- Lithium perfluorooctane sulphonate - HS-6 290433
- Potassium perfluorooctane sulphonate - HS-6 290434
- Salts of perfluorooctane sulphonic acid n.e.c. - HS-6 290435
- Perfluorooctane sulphonyl fluoride - HS-6 290436
Common questions
Frequent classification questions with short practical guidance.
How to classify sulphonated hydrocarbons?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
What are the HS-6 codes under 2904?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Is trichloronitromethane halogenated?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
What are the applications of perfluorooctane sulphonate?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
How do I determine the right HS code for my chemical?
Match the product to the legal wording, then verify the final pick in your country tariff schedule before filing.
What are the differences between HS-6 290410 and 290420?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
how to classify sulphonated hydrocarbons for import
Check the exact product specs and destination-country tariff notes before finalizing the code.
difference between nitro and nitroso derivatives in HS-4 2904
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
what products fall under HS-6 2904 codes
Use this topic to narrow your shortlist, then validate the final code against legal wording.
import regulations for perfluorooctane sulphonate
Check the exact product specs and destination-country tariff notes before finalizing the code.
how to choose the correct HS-6 code for chemicals
Use this topic to narrow your shortlist, then validate the final code against legal wording.
understanding halogenated derivatives in HS-4 2904
Use this topic to narrow your shortlist, then validate the final code against legal wording.
trichloronitromethane classification and use
Use this topic to narrow your shortlist, then validate the final code against legal wording.
perfluorooctane sulphonic acid applications and regulations
Use this as a checklist topic, then confirm legal requirements with your broker or customs advisor.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of products are classified under HS-4 2904?
- HS-4 2904 includes sulphonated, nitrated, or nitrosated derivatives of hydrocarbons, such as trichloronitromethane and various perfluorooctane sulphonates.
- How do I determine if my product is halogenated?
- Check the chemical structure of your product. If it contains halogen atoms (like chlorine or bromine), it is considered halogenated.
- What is the difference between HS-6 290410 and 290420?
- HS-6 290410 is for derivatives with only sulpho groups, while HS-6 290420 is for those containing only nitro or nitroso groups.
- Can I use HS-4 2904 for all derivatives of hydrocarbons?
- No, HS-4 2904 specifically covers sulphonated, nitrated, or nitrosated derivatives. Other types may fall under different headings.
- What should I do if my product doesn't fit neatly into the HS-6 subheadings?
- If your product is not specifically listed, you may need to use HS-6 290499, which covers derivatives n.e.c. (not elsewhere classified) in heading 2904.
- Are there any special regulations for importing perfluorooctane sulphonates?
- Yes, perfluorooctane sulphonates may be subject to specific environmental regulations due to their chemical properties. Always check local regulations.
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HS-6 subheadings (10)
- 290410Derivatives of hydrocarbons; containing only sulpho groups, their salts and ethyl esters, whether or not halogenated
- 290420Derivatives of hydrocarbons; containing only nitro or only nitroso groups, whether or not halogenated
- 290431Derivatives of hydrocarbons; perfluorooctane sulphonic acid, whether or not halogenated
- 290432Derivatives of hydrocarbons; ammonium perfluorooctane sulphonate, whether or not halogenated
- 290433Derivatives of hydrocarbons; lithium perfluorooctane sulphonate, whether or not halogenated
- 290434Derivatives of hydrocarbons; potassium perfluorooctane sulphonate, whether or not halogenated
- 290435Derivatives of hydrocarbons; salts of perfluorooctane sulphonic acid n.e.c in heading no. 2904, whether or not halogenated
- 290436Derivatives of hydrocarbons; perfluorooctane sulphonyl fluoride, whether or not halogenated
- 290491Derivatives of hydrocarbons; trichloronitromethane (chloropicrin), whether or not halogenated
- 290499Derivatives of hydrocarbons n.e.c. in heading no. 2904, whether or not halogenated