Compounds with other nitrogen function — HTS 2929
Compounds with other nitrogen function
Chapter 29 › Heading 2929
2026 HTS Rev 19 Synced Rules verified Operational
Written to help non-specialists understand this page. Rates, dates, and legal facts come from the official records above and on the linked source.
HTS heading 2929 is a 4-digit product category in Chapter 29 for organic chemical compounds containing a qualifying “other nitrogen function.” In plain language, it groups certain nitrogen-containing organic chemicals whose chemical structure and functional groups place them in this heading rather than in another organic-chemical heading. The category can cover different types of compounds, so the heading alone is not enough for entry filing.
To reach the correct 8-digit U.S. HTS code, first identify the exact chemical, including its molecular structure, functional group, CAS Registry Number, purity, and whether it is a salt, solution, mixture, or preparation. Then compare those facts with the heading’s legal notes and the more specific subheading descriptions, which commonly distinguish products by chemical type or material. Confirm that competing headings do not describe the product more specifically; difficult classifications may require a customs broker, chemist, or binding ruling from CBP.
What to check
- Obtain the product’s full chemical name, structural formula, CAS Registry Number, and specification or safety data sheet.
- Determine whether the shipment is a single chemically defined compound, a salt, solution, mixture, or formulated preparation; these facts can change classification.
- Read the Chapter 29 notes and the legal text for heading 2929 and its subordinate subheadings, not just a database search result or commercial description.
- Compare the product’s nitrogen functional group and chemical type with other potentially applicable headings before selecting an 8-digit code.
- Keep supporting documents and seek customs-broker or CBP guidance when the structure, composition, or competing heading is unclear.
HTS heading 2929 summary
Compounds with other nitrogen function is a 4-digit product category containing 0 published product-code lines in this snapshot. A heading does not carry one universal duty rate; classification must be narrowed to the line matching the product facts.
How to find your code in this category
A heading is a product category. To get the exact duty, narrow from this 4-digit heading to a sub-category (usually by material), then open the 8-digit code that matches your product.
Open any code in the tables below to see its exact duty rate, a duty calculator (enter your shipment value → estimated duty and landed cost), the rate-change history chart, and the country-by-country breakdown (including Section 301/232 add-on duties).
Why you have to click in: a single category can contain products with very different duties. The rate depends on the specific product — its material and construction — and on the country of origin, and those only get pinned down at the 8-digit code level. That is why this page points you to codes instead of showing one rate for the whole category.
Sub-categories
| Code | Description |
|---|---|
| 2929.10 | Isocyanates |
| 2929.90 | Other |
Common questions
What products fall under HTS heading 2929?
Compounds with other nitrogen function. To classify a specific item you must pick the matching sub-category and 8-digit code above; the right choice usually depends on the material and construction of the product.
How do I choose the right code within this category?
Start from the sub-categories (typically divided by material—for example cotton versus man-made fibers), then open the active 8- or 10-digit code that matches the product. When unsure, a licensed customs broker or a CBP binding ruling can confirm the classification.
Reference information only, not customs, legal, or classification advice. Confirm the current code and rate against the official HTS before you import.