Key facts
- HS subheading
- 2921.19
- National lines
- 7
- Tariff
- United States
- Chapter
- 29: Organic chemicals
Summary
The United States tariff splits HS 2921.19 (acyclic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 2921.19.11.00 (mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing), 2921.19.31.00 (3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride), 2921.19.61.10 (N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts), 2921.19.61.20 (bis(2-chloroethyl)ethylamine)) and 3 others. The general (MFN) duty differs by line: 3.7% on 2921.19.11.00, free on 2921.19.31.00, 6.5% on 2921.19.61.10, 6.5% on 2921.19.61.20, 6.5% on 2921.19.61.30, 6.5% on 2921.19.61.40 and 6.5% on 2921.19.61.95.
United States lines under 2921.19
The United States tariff splits HS 2921.19 (acyclic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 2921.19.11.00 (mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing), 2921.19.31.00 (3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride), 2921.19.61.10 (N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts), 2921.19.61.20 (bis(2-chloroethyl)ethylamine)) and 3 others.
The general (MFN) duty differs by line: 3.7% on 2921.19.11.00, free on 2921.19.31.00, 6.5% on 2921.19.61.10, 6.5% on 2921.19.61.20, 6.5% on 2921.19.61.30, 6.5% on 2921.19.61.40 and 6.5% on 2921.19.61.95.
- 2921.19.11.00Mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoingDuty: 3.7%
- 2921.19.31.003-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochlorideDuty: Free
- 2921.19.61.10N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated saltsDuty: 6.5%
- 2921.19.61.20Bis(2-chloroethyl)ethylamine)Duty: 6.5%
- 2921.19.61.30Chlormethine (INN) (bis(2-chloroethyl)methylamine)Duty: 6.5%
- 2921.19.61.40Trichlormethine (INN) (tris(2-chloroethyl)amine)Duty: 6.5%
- 2921.19.61.95OtherDuty: 6.5%
In other countries
No other national tariff on border.bot has live lines under 2921.19 yet.
Frequently asked questions
How many national tariff lines does the United States tariff have under HS 2921.19?
The United States tariff splits HS 2921.19 (acyclic monoamines and their derivatives; salts thereof: Other) into 7 national lines: 2921.19.11.00 (mono-, di- and triethylamines;mono-, di-, and tri-(propyl- and butyl-)monoamines; salts of any of the foregoing), 2921.19.31.00 (3-Amino-3-methyl-1-butyne; (Dimethylamino)isopropyl chloride hydrochloride), 2921.19.61.10 (N,N-Dialkyl (methyl, ethyl or n-propyl)-2-chloroethylamines and their protonated salts), 2921.19.61.20 (bis(2-chloroethyl)ethylamine)) and 3 others.
What is the duty on HS 2921.19 in the United States?
The general (MFN) duty differs by line: 3.7% on 2921.19.11.00, free on 2921.19.31.00, 6.5% on 2921.19.61.10, 6.5% on 2921.19.61.20, 6.5% on 2921.19.61.30, 6.5% on 2921.19.61.40 and 6.5% on 2921.19.61.95.
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: