HTS Chapter 29: Organic chemicals
HTS Chapter 29 covers Organic chemicals. Browse 36 published headings, then narrow to the active product line that matches the goods.
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 Chapter 29 covers organic chemicals. The headings generally distinguish products by their chemical structure and functional groups, such as hydrocarbons, alcohols, phenols, ethers, epoxides, aldehydes, ketones, quinones, and organic acids, along with certain halogenated, sulfonated, nitrated, or nitrosated derivatives. Products may be pure compounds, chemically defined mixtures in some cases, or specified chemical derivatives; the exact scope depends on the heading and legal notes.
The Harmonized Tariff Schedule is read from broad to specific: chapter, heading, subheading, and then the complete 10-digit statistical reporting number. For Chapter 29, classification usually starts with the product's chemical identity and composition—not its marketing name or intended use. Gather the CAS Registry Number, molecular or structural formula, purity, formulation, physical form, and any additives, then compare them with the heading text, section and chapter notes, subheading provisions, and applicable classification rules. Some products that seem chemical-related are excluded from Chapter 29 or classified elsewhere, and difficult cases may require a customs broker or a binding ruling from U.S. Customs and Border Protection.
What to check
- Confirm the exact chemical identity, CAS Registry Number, purity, concentration, and whether the product is a single compound, mixture, derivative, or preparation.
- Classify by composition and chemical structure before considering the product's claimed use, trade name, packaging, or industry application.
- Read the relevant Section VI and Chapter 29 notes, heading exclusions, and subheading text to check whether another chapter or a more specific provision applies.
- Verify the complete 10-digit HTS number, including statistical suffixes and any unit-of-measure requirements, against the current official HTS data.
- Check separately for applicable Chapter 99 provisions, including additional duties, exclusions, quotas, or trade-program requirements, and obtain broker or CBP guidance when the chemistry or scope is uncertain.
How to use this chapter
A chapter is the first classification level, not a duty rate. Choose the heading that describes the product, narrow by material, construction, use, or other legal distinctions, and verify the final line against the official HTS notes.
Heading list
| HTS code | Description | Linked 8-digit entries |
|---|---|---|
| 2901 | Acyclic hydrocarbons: | 0 |
| 2902 | Cyclic hydrocarbons: | 1 |
| 2903 | Halogenated derivatives of hydrocarbons: | 3 |
| 2904 | Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated: | 0 |
| 2905 | Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives: | 2 |
| 2906 | Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2907 | Phenols; phenol-alcohols: | 0 |
| 2908 | Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols: | 0 |
| 2909 | Ethers, ether-alcohols, ether-phenols, ether-alcohol- phenols, alcohol peroxides, ether peroxides, acetal and hemiacetal peroxides, ketone peroxides (whether or not chemically defined), and their halogenated, sulfonated, nitrated or nitrosated derivatives | 0 |
| 2910 | Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2912 | Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde: | 0 |
| 2914 | Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives: | 0 |
| 2915 | Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 1 |
| 2916 | Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2917 | Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 1 |
| 2918 | Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2919 | Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2920 | Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives: | 0 |
| 2921 | Amine-function compounds | 1 |
| 2922 | Oxygen-function amino-compounds: | 1 |
| 2923 | Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined: | 0 |
| 2924 | Carboxyamide-function compounds; amide-function compounds of carbonic acid: | 0 |
| 2925 | Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds: | 0 |
| 2926 | Nitrile-function compounds: | 0 |
| 2929 | Compounds with other nitrogen function: | 0 |
| 2930 | Organo-sulfur compounds: | 0 |
| 2931 | Other organo-inorganic compounds: | 0 |
| 2932 | Heterocyclic compounds with oxygen hetero-atom(s) only: | 0 |
| 2933 | Heterocyclic compounds with nitrogen hetero-atom(s) only: | 1 |
| 2934 | Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: | 0 |
| 2935 | Sulfonamides: | 0 |
| 2936 | Provitamins and vitamins, natural or reproduced by synthesis (including natural concentrates), derivatives thereof used primarily as vitamins, and intermixtures of the foregoing, whether or not in any solvent: | 1 |
| 2937 | Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones: | 2 |
| 2938 | Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: | 0 |
| 2939 | Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives: | 2 |
| 2941 | Antibiotics: | 1 |
Linked measures
0 linked measure entries in the current snapshot.
Questions about HTS Chapter 29
What does HTS Chapter 29 cover?
HTS Chapter 29 covers Organic chemicals. This page groups the chapter’s 4-digit headings; a shipment still needs the most specific active 8- or 10-digit line supported by the product facts.
Is HTS Chapter 29 a final product classification?
No. A chapter is a broad 2-digit category. Narrow it to the applicable heading and the most specific active statistical line before estimating duty or filing an entry.