2921.51 · <i>o</i>-, <i>m</i>-, <i>p</i>-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof:
This is a category heading rather than a rate line — pick one of the codes below to see its full duty stack.
Subordinate codes (4)
| Code | Description |
|---|---|
| 2921.51.10.00 | 4-Amino-2-(<i>N</i>,<i>N</i>-diethylamino) toluene hydrochloride;<i>m</i>-Phenylenediamine;<i>o</i>-Phenylenediamine; Toluene-2,4-diamine; Toluene-2,5-diamine; and Toluene-2,5-diamine sulfate |
| 2921.51.20.00 | Photographic chemicals |
| 2921.51.30.00 | Products described in additional U.S. note 3 to section VI |
| 2921.51.50.00 | Other |
Frequently asked
- What does 2921.51 cover?
- <i>o</i>-, <i>m</i>-, <i>p</i>-Phenylenediamine, diaminotoluenes, and their derivatives; salts thereof:. This is a heading-level category with several subordinate codes — open one to see its full duty breakdown.
- Where does this data come from?
- Codes and MFN base rates come from the full USITC HTS 2026 Rev.11 export. Section 301/232/122 surcharge mappings are approximated pending code-level review. Every rate carries a source_url and effective_from, so you can trace it back to the controlling notice.