# United States tariff line 2929.10.27.00: N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate

> In the United States tariff, line 2929.10.27.00 covers isocyanates, N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate. Goods under this line enter free of general (MFN) duty. It falls under HS subheading 2929.10 in heading 29.29 (chapter 29).

Source: https://border.bot/countries/united-states/hs-codes/2929102700
Last updated: 9 October 2026

[Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 29](https://border.bot/countries/united-states/hs-codes/29) / [2929.10](https://border.bot/countries/united-states/hs-codes/292910) / [2929.10.27.00](https://border.bot/countries/united-states/hs-codes/2929102700)

## Key facts

- Tariff line: 2929.10.27.00
- Covers: Isocyanates, N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate
- Duty (MFN): Free
- Additional duties: None recorded
- Restrictions: None recorded
- Tariff: [United States](https://border.bot/countries/united-states)
- HS subheading: [2929.10](https://border.bot/hs-codes/292910)

## What this line covers

In the United States tariff, line 2929.10.27.00 covers isocyanates, N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate.

Its legal text is “N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate”, read under “Isocyanates”.

## How it is structured

It falls under HS subheading 2929.10 in heading 29.29 (chapter 29). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff.

- Chapter 29: Organic chemicals
- Heading 29.29: Compounds with other nitrogen function
- Subheading 2929.10: Isocyanates
- Line 2929.10.27.00: N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate

## Duty

Goods under this line enter free of general (MFN) duty.

## In other countries

No other national tariff on border.bot has live lines under 2929.10 yet.

- [The Harmonized System text for 2929.10](https://border.bot/hs-codes/292910)

## Other lines under 2929.10

- [2929.10.10.00](https://border.bot/countries/united-states/hs-codes/2929101000) Toluenediisocyanates (unmixed)
- [2929.10.15.00](https://border.bot/countries/united-states/hs-codes/2929101500) Mixtures of 2,4- and 2,6-toluenediisocyanates
- [2929.10.20.00](https://border.bot/countries/united-states/hs-codes/2929102000) Bitolylene diisocyanate (TODI);o-Isocyanic acid, o-tolyl ester; and Xylene diisocyanate
- [2929.10.30.00](https://border.bot/countries/united-states/hs-codes/2929103000) 3,4-Dichlorophenylisocyanate
- [2929.10.35.00](https://border.bot/countries/united-states/hs-codes/2929103500) 1,6-Hexamethylene diisocyanate
- [2929.10.55.00](https://border.bot/countries/united-states/hs-codes/2929105500) Products described in additional U.S. note 3 to section VI
- [2929.10.80.10](https://border.bot/countries/united-states/hs-codes/2929108010) Methylenedi-p-phenylene isocyanate (MDI)
- [2929.10.80.90](https://border.bot/countries/united-states/hs-codes/2929108090) Other

- Previous line: [2929.10.20.00](https://border.bot/countries/united-states/hs-codes/2929102000) Bitolylene diisocyanate (TODI);o-Isocyanic acid, o-tolyl ester; and Xylene diisocyanate
- Next line: [2929.10.30.00](https://border.bot/countries/united-states/hs-codes/2929103000) 3,4-Dichlorophenylisocyanate

## Frequently asked questions

### What does tariff line 2929.10.27.00 cover in the United States tariff?

In the United States tariff, line 2929.10.27.00 covers isocyanates, N-Butylisocyanate; Cyclohexyl isocyanate; 1-Isocyanato-3-(trifluoromethyl) benzene; 1,5-Naphthalene diisocyanate; and Octadecyl isocyanate.

### What is the general (MFN) duty on 2929.10.27.00 in the United States?

Goods under this line enter free of general (MFN) duty.

## Sources and updates

The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026.

This page was last updated on 9 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.

Official source files:

- https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false

Machine-readable: https://border.bot/countries/united-states/hs-codes/2929102700.json