Chapter 29 · Organic chemicals · Section 6
HS Code 2921.51
o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof
Heading 2921: Amine-function compounds
US HTS + UK Tariff v4.0.1596 · updated 2026-09-10 · sources
United States - HTS lines under 2921.51
Source: official Harmonized Tariff Schedule (USITC). "General" is the normal-trade-relations rate; "Special" lists preference programs; "Other" is the column-2 rate. Additional Section 232/301 duties may apply on top.
| HTS code | Description | General | Special | Other | Unit |
|---|---|---|---|---|---|
| 2921.51.10 |
o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > 4-Amino-2-(N,N-diethylamino) toluene hydrochloride;m-Phenylenediamine;o-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate |
6.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 48.5% | kg |
| 2921.51.20 |
o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof > Other > Photographic chemicals |
6.5% | Free (A,AU,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 50% | kg |
| 2921.51.30 |
Other > Other > Products described in additional U.S. note 3 to section VI |
6.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 60% | kg |
| 2921.51.50 |
Other > Other > Other |
6.5% | Free (A+,AU,BH,CL,CO,D,E,IL,JO,KR,L,MA,OM,P,PA,PE,S,SG) | 15.4¢/kg + 60% | kg |
Estimate the US duty runs in your browser · no caps
Enter the customs value (and quantity, when a rate is per-unit) to estimate the general-rate duty per HTS line. Estimates exclude Section 232/301 surcharges, MPF/HMF and fees. Not a customs ruling.
European Union - CN codes under 2921.51
Source: EU Combined Nomenclature (Eurostat, © European Union, reused per Decision 2011/833/EU). Duty rates and measures live in TARIC; each code links to the official consultation.
| CN code | Description | |
|---|---|---|
| 2921 51 19 | Other | EU duty (TARIC) → |
| 2921 51 90 | Other | EU duty (TARIC) → |
| 2921 51 11 | m-Phenylenediamine, of a purity by weight of 99 % or more and containing: – 1 % or less by weight of water, – 200 mg/kg or less of o-phenylenediamine, – 450 mg/kg or less of p-phenylenediamine | EU duty (TARIC) → |
| 2921 51 00 | o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof | EU duty (TARIC) → |
United Kingdom - commodity codes under 2921.51
Source: UK Integrated Online Tariff (Open Government Licence v3.0). Declarable 10-digit codes go on the customs declaration; check the official page for the current duty and VAT measures.
| Commodity code | Description | |
|---|---|---|
| 2921 51 00 00 | o-, m-, p-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof | UK duty & VAT → |
| 2921 51 11 00 | m-Phenylenediamine, of a purity by weight of 99 % or more and containing:<br><br><br>- 1 % or less by weight of water,<br><br><br>- 200 mg/kg or less of o-phenylenediamine and<br><br><br>- 450 mg/kg or less of p-phenylenediamine | UK duty & VAT → |
| 2921 51 19 00 | Other | UK duty & VAT → |
| 2921 51 19 10 | o-Phenylenediamine (CAS RN 95-54-5) | UK duty & VAT → |
| 2921 51 19 30 | 2-Methyl-p-phenylenediamine sulphate (CAS RN 615-50-9) | UK duty & VAT → |
| 2921 51 19 40 | p-Phenylenediamine (CAS RN 106-50-3) | UK duty & VAT → |
| 2921 51 19 50 | 2-Chloro-1,4-phenylendiamine (CAS RN 615-66-7) or 2,5-dichloro-1,4-phenylendiamine (CAS RN 20103-09-7) | UK duty & VAT → |
| 2921 51 19 90 | Other | UK duty & VAT → |
| 2921 51 90 00 | Other | UK duty & VAT → |
Other subheadings in 2921
Sources: U.S. International Trade Commission, Harmonized Tariff Schedule (public domain) · EU Combined Nomenclature © European Union, Eurostat (Decision 2011/833/EU) · UK Integrated Online Tariff, contains public sector information licensed under the Open Government Licence v3.0. Data refreshed weekly. Details on About & Data Sources.