# HS code 2921.43: Aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof > HS code 2921.43 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof. It sits in heading 29.21 (amine-function compounds) in chapter 29 (organic chemicals). Other goods of heading 29.21 are classified under 2921.11 (acyclic monoamines and their derivatives; salts thereof, methylamine, di- or trimethylamine and their salts), 2921.12 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Dimethylamino)ethylchloride hydrochloride), 2921.13 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diethylamino)ethylchloride hydrochloride), 2921.14 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diisopropylamino)ethylchloride hydrochloride) or 13 others. Source: https://staging.border.bot/hs-codes/292143 Last updated: 13 October 2026 [HS codes](https://staging.border.bot/hs-codes) / [Chapter 29](https://staging.border.bot/hs-codes/29) / [29.21](https://staging.border.bot/hs-codes/2921) / [2921.43](https://staging.border.bot/hs-codes/292143) ## Key facts - HS code: 2921.43 - Covers: Aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof - Heading: [29.21: Amine-function compounds](https://staging.border.bot/hs-codes/2921) - Chapter: [29: Organic chemicals](https://staging.border.bot/hs-codes/29) - Edition: HS2022 - Duty rates: [Set by each country’s tariff](https://staging.border.bot/countries) ## What this code covers HS code 2921.43 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof. The legal text of the subheading is “Aromatic monoamines and their derivatives; salts thereof: Toluidines and their derivatives; salts thereof”, read under “Aromatic monoamines and their derivatives; salts thereof”, in HS2022. ## What it doesn’t cover Other goods of heading 29.21 are classified under 2921.11 (acyclic monoamines and their derivatives; salts thereof, methylamine, di- or trimethylamine and their salts), 2921.12 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Dimethylamino)ethylchloride hydrochloride), 2921.13 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diethylamino)ethylchloride hydrochloride), 2921.14 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diisopropylamino)ethylchloride hydrochloride) or 13 others. - [2921.11](https://staging.border.bot/hs-codes/292111) Acyclic monoamines and their derivatives; salts thereof: Methylamine, di- or trimethylamine and their salts - [2921.12](https://staging.border.bot/hs-codes/292112) Acyclic monoamines and their derivatives; salts thereof: 2-(N,N-Dimethylamino)ethylchloride hydrochloride - [2921.13](https://staging.border.bot/hs-codes/292113) Acyclic monoamines and their derivatives; salts thereof: 2-(N,N-Diethylamino)ethylchloride hydrochloride - [2921.14](https://staging.border.bot/hs-codes/292114) Acyclic monoamines and their derivatives; salts thereof: 2-(N,N-Diisopropylamino)ethylchloride hydrochloride - [2921.19](https://staging.border.bot/hs-codes/292119) Acyclic monoamines and their derivatives; salts thereof: Other - [2921.21](https://staging.border.bot/hs-codes/292121) Acyclic polyamines and their derivatives; salts thereof: Ethylenediamine and its salts - [2921.22](https://staging.border.bot/hs-codes/292122) Acyclic polyamines and their derivatives; salts thereof: Hexamethylenediamine and its salts - [2921.29](https://staging.border.bot/hs-codes/292129) Acyclic polyamines and their derivatives; salts thereof: Other - [2921.30](https://staging.border.bot/hs-codes/292130) Cyclanic, cyclenic or cycloterpenic mono- or polyamines, and their derivatives; salts thereof - [2921.41](https://staging.border.bot/hs-codes/292141) Aromatic monoamines and their derivatives; salts thereof: Aniline and its salts - [2921.42](https://staging.border.bot/hs-codes/292142) Aromatic monoamines and their derivatives; salts thereof: Aniline derivatives and their salts - [2921.44](https://staging.border.bot/hs-codes/292144) Aromatic monoamines and their derivatives; salts thereof: Diphenylamine and its derivatives; salts thereof - [2921.45](https://staging.border.bot/hs-codes/292145) Aromatic monoamines and their derivatives; salts thereof: 1-Naphthylamine (alpha-naphthylamine), 2-naphthylamine (beta- naphthylamine) and their derivatives; salts thereof - [2921.46](https://staging.border.bot/hs-codes/292146) Aromatic monoamines and their derivatives; salts thereof: Amfetamine (INN), benzfetamine (INN), dexamfetamine (INN), etilamfetamine (INN), fencamfamin (INN), lefetamine (INN), levamfetamine (INN), mefenorex (INN) and phentermine (INN); salts thereof - [2921.49](https://staging.border.bot/hs-codes/292149) Aromatic monoamines and their derivatives; salts thereof: Other - [2921.51](https://staging.border.bot/hs-codes/292151) Aromatic polyamines and their derivatives; salts thereof: o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof - [2921.59](https://staging.border.bot/hs-codes/292159) Aromatic polyamines and their derivatives; salts thereof: Other ## How it is structured 2921.43 is a six-digit subheading. Its first two digits, 29, are the chapter; the first four, 2921, are heading 29.21; the last two, 43, identify the subheading within the heading. Countries add their own digits after these six for their national tariff lines. - Chapter 29: Organic chemicals - Heading 29.21: Amine-function compounds - Within the heading: Aromatic monoamines and their derivatives; salts thereof - Subheading 2921.43: Toluidines and their derivatives; salts thereof ## In other countries No national tariff lines under 2921.43 are live on border.bot yet. Tariffs built on the Harmonized System (HS2022) use 2921.43 at six digits and add their own digits after it. - Previous subheading: [2921.42](https://staging.border.bot/hs-codes/292142) Aromatic monoamines and their derivatives; salts thereof: Aniline derivatives and their salts - Next subheading: [2921.44](https://staging.border.bot/hs-codes/292144) Aromatic monoamines and their derivatives; salts thereof: Diphenylamine and its derivatives; salts thereof ## Frequently asked questions ### What does HS code 2921.43 cover? HS code 2921.43 covers aromatic monoamines and their derivatives; salts thereof, toluidines and their derivatives; salts thereof. ### Which heading and chapter is HS code 2921.43 in? HS code 2921.43 is in heading 29.21 (amine-function compounds) in chapter 29 (organic chemicals). ### Where are goods of heading 29.21 classified when 2921.43 doesn’t fit? Other goods of heading 29.21 are classified under 2921.11 (acyclic monoamines and their derivatives; salts thereof, methylamine, di- or trimethylamine and their salts), 2921.12 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Dimethylamino)ethylchloride hydrochloride), 2921.13 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diethylamino)ethylchloride hydrochloride), 2921.14 (acyclic monoamines and their derivatives; salts thereof, 2-(N,N-Diisopropylamino)ethylchloride hydrochloride) or 13 others. ## Sources and updates The Harmonized System legal text comes from border.bot release 1 (edition HS 2022), imported from a file, and has been live since 13 October 2026. This page was last updated on 13 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://staging.border.bot/hs-codes/292143.json