# United States tariff lines under HS 2934.30

> The United States tariff splits HS 2934.30 (compounds containing in the structure a phenothiazine ring- system (whether or not hydrogenated), not further fused) into 6 national lines: 2934.30.12.00 (2-(Trifluoromethyl)phenothiazine), 2934.30.18.00 (ethyl (1H-phenothiazin-2,4,1)carbamate), 2934.30.23.00 (antidepressants, tranquilizers and other psychotherapeutic agents), 2934.30.27.00 (other) and 2 others. The general (MFN) duty differs by line: 6.5% on 2934.30.12.00, free on 2934.30.18.00, 6.5% on 2934.30.23.00, 6.5% on 2934.30.27.00, 6.5% on 2934.30.43.00 and 6.5% on 2934.30.50.00.

Source: https://border.bot/countries/united-states/hs-codes/293430
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) / [2934.30](https://border.bot/countries/united-states/hs-codes/293430)

## Key facts

- HS subheading: [2934.30](https://border.bot/hs-codes/293430)
- National lines: 6
- Tariff: [United States](https://border.bot/countries/united-states)
- Chapter: 29: Organic chemicals

## United States lines under 2934.30

The United States tariff splits HS 2934.30 (compounds containing in the structure a phenothiazine ring- system (whether or not hydrogenated), not further fused) into 6 national lines: 2934.30.12.00 (2-(Trifluoromethyl)phenothiazine), 2934.30.18.00 (ethyl (1H-phenothiazin-2,4,1)carbamate), 2934.30.23.00 (antidepressants, tranquilizers and other psychotherapeutic agents), 2934.30.27.00 (other) and 2 others.

The general (MFN) duty differs by line: 6.5% on 2934.30.12.00, free on 2934.30.18.00, 6.5% on 2934.30.23.00, 6.5% on 2934.30.27.00, 6.5% on 2934.30.43.00 and 6.5% on 2934.30.50.00.

- [2934.30.12.00](https://border.bot/countries/united-states/hs-codes/2934301200) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, 2-(Trifluoromethyl)phenothiazine. Duty (MFN): 6.5%
- [2934.30.18.00](https://border.bot/countries/united-states/hs-codes/2934301800) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, Ethyl (1H-phenothiazin-2,4,1)carbamate. Duty (MFN): free
- [2934.30.23.00](https://border.bot/countries/united-states/hs-codes/2934302300) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, Other, Drugs, Antidepressants, tranquilizers and other psychotherapeutic agents. Duty (MFN): 6.5%
- [2934.30.27.00](https://border.bot/countries/united-states/hs-codes/2934302700) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, Other, Drugs, Other. Duty (MFN): 6.5%
- [2934.30.43.00](https://border.bot/countries/united-states/hs-codes/2934304300) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, Other, Other, Products described in additional U.S. note 3 to section VI. Duty (MFN): 6.5%
- [2934.30.50.00](https://border.bot/countries/united-states/hs-codes/2934305000) Compounds containing in the structure a phenothiazine ring-system (whether or not hydrogenated), not further fused, Other, Other, Other. Duty (MFN): 6.5%

## In other countries

No other national tariff on border.bot has live lines under 2934.30 yet.

- [The Harmonized System text for 2934.30](https://border.bot/hs-codes/293430)

- Previous subheading: [2934.20](https://border.bot/countries/united-states/hs-codes/293420) Compounds containing in the structure a benzothiazole ring-system (whether or not hydrogenated), not further fused
- Next subheading: [2934.91](https://border.bot/countries/united-states/hs-codes/293491) Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds

## Frequently asked questions

### How many national tariff lines does the United States tariff have under HS 2934.30?

The United States tariff splits HS 2934.30 (compounds containing in the structure a phenothiazine ring- system (whether or not hydrogenated), not further fused) into 6 national lines: 2934.30.12.00 (2-(Trifluoromethyl)phenothiazine), 2934.30.18.00 (ethyl (1H-phenothiazin-2,4,1)carbamate), 2934.30.23.00 (antidepressants, tranquilizers and other psychotherapeutic agents), 2934.30.27.00 (other) and 2 others.

### What is the duty on HS 2934.30 in the United States?

The general (MFN) duty differs by line: 6.5% on 2934.30.12.00, free on 2934.30.18.00, 6.5% on 2934.30.23.00, 6.5% on 2934.30.27.00, 6.5% on 2934.30.43.00 and 6.5% on 2934.30.50.00.

## 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/293430.json