# HS code 2935.30: N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide

> HS code 2935.30 covers N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide. It sits in heading 29.35 (sulphonamides) in chapter 29 (organic chemicals). Other goods of heading 29.35 are classified under 2935.10 (N-Methylperfluorooctane sulphonamide), 2935.20 (N-Ethylperfluorooctane sulphonamide), 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide), 2935.50 (other perfluorooctane sulphonamides) or 1 other. National tariff lines under 2935.30 are live on border.bot for the United States (1 line, also used by 1 other country).

Source: https://border.bot/hs-codes/293530
Last updated: 11 October 2026

[HS codes](https://border.bot/hs-codes) / [Chapter 29](https://border.bot/hs-codes/29) / [29.35](https://border.bot/hs-codes/2935) / [2935.30](https://border.bot/hs-codes/293530)

## Key facts

- HS code: 2935.30
- Covers: N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide
- Heading: [29.35: Sulphonamides](https://border.bot/hs-codes/2935)
- Chapter: [29: Organic chemicals](https://border.bot/hs-codes/29)
- Edition: HS2022
- Duty in the United States: [See its 1 line](https://border.bot/countries/united-states/hs-codes/293530)

## What this code covers

HS code 2935.30 covers N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide.

The legal text of the subheading is “N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide”, in HS2022.

## What it doesn’t cover

Other goods of heading 29.35 are classified under 2935.10 (N-Methylperfluorooctane sulphonamide), 2935.20 (N-Ethylperfluorooctane sulphonamide), 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide), 2935.50 (other perfluorooctane sulphonamides) or 1 other.

- [2935.10](https://border.bot/hs-codes/293510) N-Methylperfluorooctane sulphonamide
- [2935.20](https://border.bot/hs-codes/293520) N-Ethylperfluorooctane sulphonamide
- [2935.40](https://border.bot/hs-codes/293540) N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide
- [2935.50](https://border.bot/hs-codes/293550) Other perfluorooctane sulphonamides
- [2935.90](https://border.bot/hs-codes/293590) Other

## How it is structured

2935.30 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2935, are heading 29.35; the last two, 30, identify the subheading within the heading.

Countries add their own digits after these six for their national tariff lines.

- Chapter 29: Organic chemicals
- Heading 29.35: Sulphonamides
- Subheading 2935.30: N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide

## In other countries

National tariff lines under 2935.30 are live on border.bot for the United States (1 line, also used by 1 other country).

- [United States](https://border.bot/countries/united-states/hs-codes/293530): 1 line, used by 1 other country

- Previous subheading: [2935.20](https://border.bot/hs-codes/293520) N-Ethylperfluorooctane sulphonamide
- Next subheading: [2935.40](https://border.bot/hs-codes/293540) N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide

## Frequently asked questions

### What does HS code 2935.30 cover?

HS code 2935.30 covers N-Ethyl-N-(2-hydroxyethyl) perfluorooctane sulphonamide.

### Which heading and chapter is HS code 2935.30 in?

HS code 2935.30 is in heading 29.35 (sulphonamides) in chapter 29 (organic chemicals).

### Where are goods of heading 29.35 classified when 2935.30 doesn’t fit?

Other goods of heading 29.35 are classified under 2935.10 (N-Methylperfluorooctane sulphonamide), 2935.20 (N-Ethylperfluorooctane sulphonamide), 2935.40 (N-(2-Hydroxyethyl)-N-methylperfluorooctane sulphonamide), 2935.50 (other perfluorooctane sulphonamides) or 1 other.

### Which countries’ tariffs list national lines under HS code 2935.30?

National tariff lines under 2935.30 are live on border.bot for the United States (1 line, also used by 1 other country).

## Sources and updates

The Harmonized System legal text comes from border.bot release 2 (edition HS 2022), imported from a file, and has been live since 11 October 2026.

This page was last updated on 11 October 2026.

Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling.

Machine-readable: https://border.bot/hs-codes/293530.json