What types of products fall under HS-4 2935?

HS-4 2935 includes various sulphonamides, specifically perfluorooctane sulphonamides, with distinct classifications based on their chemical structure.

How do I know which HS-6 line to use?

Select the HS-6 line that matches your product's specific chemical structure, such as methyl or ethyl substitutions on the nitrogen atom.

What does n.e.c. mean in HS-6 293590?

n.e.c. stands for 'not elsewhere classified', which is used for sulphonamides that do not fit into the defined subheadings.

Can I use HS-6 293590 for unique formulations?

Yes, if your sulphonamide does not match the other specific subheadings, you can classify it under HS-6 293590.

Are there any special regulations for importing sulphonamides?

Yes, check with your local customs authority for any specific regulations or restrictions on importing sulphonamides.

HS-4 · Heading

2935 — Sulphonamides

Chapter 29: Organic chemicals

Plain-language overview

Use HS-4 2935 when importing or exporting sulphonamides, such as N-methylperfluorooctane sulphonamide, which is commonly used in various chemical applications. Understanding the specific subheadings will help you classify your products accurately.

When choosing between subheadings like 293510 and 293520, note that the former is for N-methylperfluorooctane sulphonamide, while the latter covers N-ethylperfluorooctane sulphonamide. The key difference lies in the methyl versus ethyl substitution on the nitrogen atom.

If your product is a sulphonamide but doesn’t fit neatly into the specific categories, consider HS-6 293590, which covers other sulphonamides not elsewhere classified. This is useful for unique formulations or compounds that don’t match the listed subheadings.

Keywords & topics

Short phrases that describe this HS-4 heading when you're searching or filtering schedules.

sulphonamides import · N-methylperfluorooctane sulphonamide · N-ethylperfluorooctane sulphonamide · chemical classification · perfluorooctane sulphonamide · HS code 2935 · organic chemicals · chemical exports · sulphonamide applications · customs classification

Examples

Drawn from the official tariff wording for this HS-4 heading. Always confirm against your published schedule and legal notes.

N-methylperfluorooctane sulphonamide (HS-6 293510)
N-ethylperfluorooctane sulphonamide (HS-6 293520)
N-ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide (HS-6 293530)
N-(2-hydroxyethyl)-N-methylperfluorooctane sulphonamide (HS-6 293540)
Other perfluorooctane sulphonamides (HS-6 293550)
Other sulphonamides not elsewhere classified (HS-6 293590)

Common questions

How people often phrase their search when they're trying to classify goods like yours.

What is HS code 2935 used for?
How to classify sulphonamides for import?
Difference between N-methyl and N-ethyl sulphonamides?
What are perfluorooctane sulphonamides?
How to find the right HS code for chemicals?
What does n.e.c. mean in HS codes?

Questions & answers

For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.

What types of products fall under HS-4 2935?: HS-4 2935 includes various sulphonamides, specifically perfluorooctane sulphonamides, with distinct classifications based on their chemical structure.
How do I know which HS-6 line to use?: Select the HS-6 line that matches your product's specific chemical structure, such as methyl or ethyl substitutions on the nitrogen atom.
What does n.e.c. mean in HS-6 293590?: n.e.c. stands for 'not elsewhere classified', which is used for sulphonamides that do not fit into the defined subheadings.
Can I use HS-6 293590 for unique formulations?: Yes, if your sulphonamide does not match the other specific subheadings, you can classify it under HS-6 293590.
Are there any special regulations for importing sulphonamides?: Yes, check with your local customs authority for any specific regulations or restrictions on importing sulphonamides.

Continue classification

Parent context

HS code directory Chapter 29

Nearby siblings

Previous HS-4 2934 Next HS-4 2936

Next best action

Pick one of these actions to move from reading to a defensible classification decision.

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HS-6 subheadings (6)

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