Section VI · Organic chemicals

2921.42

Aniline derivatives and their salts:

How this code is built
29

Chapter

Organic chemicals

21

Heading

The product family within the chapter

42

Subheading

The specific good, identical worldwide

The first six digits are the same in every country that uses the Harmonized System. The United States adds two more for the tariff rate and, often, two more for statistics — which is why the rates below are listed against 8- and 10-digit numbers rather than against this code.

How the schedule reaches this code

  1. 29Organic chemicals
  2. 2921Amine-function compounds
  3. Aromatic monoamines and their derivatives; salts thereof:
  4. Aniline derivatives and their salts:

Published US duty rates

Duty is set at the 8- or 10-digit line, not at this 6-digit subheading, so more than one rate can sit under this code.

  • 2921.42.10.00N,N-Dimethylanilinekg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 40%

    Countries without normal trade relations.

  • 2921.42.15.00N-Ethylaniline; andN,N-Diethylanilinekg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.16.002,4,5-Trichloroanilinekg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 39.5%

    Countries without normal trade relations.

  • 2921.42.18.00o-Aminobenzenesulfonic acid (Orthanilic acid); 6-Chlorometanilic acid; 2-Chloro-5-nitroaniline; 4-Chloro-3-nitroaniline; 2,3-Dichloroaniline; 2,4-Dichloroaniline; 2,5-Dichloroaniline; 3,5-Dichloroaniline;N,N-Diethylmetanilic acid;N,N-Diethylmetanilic acid, sodium salt; 2,4-Difluoroaniline;p-Fluoroaniline;N-Methylaniline; andm-Nitroanilinekg
    General
    5.8%
    Special (FTA)
    Free(A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE, S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 39.5%

    Countries without normal trade relations.

  • 2921.42.21.00Metanilic acidkg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.22.00Sulfanilic acidkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO, KR,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.23.003,4-Dichloroanilinekg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.36.00m-Chloroaniline; 2-Chloro-4-nitroaniline; 2,5-Dichloroaniline-4-sulfonic acid and its monosodium salt; 2,4-Dinitroaniline;o-Nitroaniline-p-sulfonic acid, sodium salt; and 2,3,4-Trifluoroanilinekg
    General
    Free
    Special (FTA)
    —

    No preferential rate published.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.55.00Fast color baseskg
    General
    6.5%
    Special (FTA)
    Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 53%

    Countries without normal trade relations.

  • 2921.42.65.00Products described in additional U.S. note 3 to section VIkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

  • 2921.42.90.00Otherkg
    General
    6.5%
    Special (FTA)
    Free (A+,AU,BH,CL,CO,D, E,IL,JO,K, KR,L,MA,OM,P, PA,PE,S,SG)

    Only if the goods qualify under one of these programs.

    Column 2
    15.4¢/kg + 60%

    Countries without normal trade relations.

Schedule footnotes

  • See 9903.88.15.
  • See 9903.88.03.

A reference to Chapter 99 means an additional action — a Section 232 or 301 measure, an exclusion, or a quota — applies on top of the rate above.

This is the listed rate. Antidumping and countervailing duty orders, Chapter 99 actions and preference qualification all change what is actually collected, and classification is a judgement about your goods. Verify with your licensed customs broker before you file.

Other subheadings in heading 2921

Source: U.S. International Trade Commission (USITC) — 2026 HTS Revision 12, released 2026-07-21, published at hts.usitc.gov. A U.S. Government work in the public domain.