Organic chemicals

The 42 headings of chapter 29

• 2901: Acyclic hydrocarbons (13 codes, General duty Free)
• 2902: Cyclic hydrocarbons (19 codes, General duty Free)
• 2903: Halogenated derivatives of hydrocarbons (76 codes, General duty Free to 5.5%)
• 2904: Sulfonated, nitrated or nitrosated derivatives of hydrocarbons, whether or not halogenated (31 codes, General duty Free to 5.5%)
• 2905: Acyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives (44 codes, General duty Free to 5.5%, some per unit)
• 2906: Cyclic alcohols and their halogenated, sulfonated, nitrated or nitrosated derivatives (12 codes, General duty Free to 5.5%)
• 2907: Phenols; phenol-alcohols (20 codes, General duty Free to 5.5%)
• 2908: Halogenated, sulfonated, nitrated or nitrosated derivatives of phenols or phenol-alcohols (21 codes, General duty Free to 5.5%)
• 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 (33 codes, General duty Free to 5.5%)
• 2910: Epoxides, epoxyalcohols, epoxyphenols and epoxyethers, with a three-membered ring, and their halogenated, sulfonated, nitrated or nitrosated derivatives (8 codes, General duty 3.7% to 5.5%)
• 2911: Acetals and hemiacetals, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated or nitrosated derivatives (2 codes, General duty Free to 5.3%)
• 2912: Aldehydes, whether or not with other oxygen function; cyclic polymers of aldehydes; paraformaldehyde (24 codes, General duty Free to 5.5%)
• 2913: Halogenated, sulfonated, nitrated or nitrosated derivatives of products of heading 2912 (3 codes, General duty Free to 5.5%)
• 2914: Ketones and quinones, whether or not with other oxygen function, and their halogenated, sulfonated, nitrated, or nitrosated derivatives (35 codes, General duty Free to 5.5%)
• 2915: Saturated acyclic monocarboxylic acids and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives (47 codes, General duty Free to 5.5%)
• 2916: Unsaturated acyclic monocarboxylic acids, cyclic monocarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives (45 codes, General duty Free to 6.5%)
• 2917: Polycarboxylic acids, their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives (36 codes, General duty Free to 6.5%)
• 2918: Carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulfonated, nitrated or nitrosated derivatives (62 codes, General duty Free to 6.5%)
• 2919: Phosphoric esters and their salts, including lactophosphates; their halogenated, sulfonated, nitrated or nitrosated derivatives (6 codes, General duty Free to 6.5%)
• 2920: Esters of other inorganic acids of nonmetals (excluding esters of hydrogen halides) and their salts; their halogenated, sulfonated, nitrated or nitrosated derivatives (14 codes, General duty Free to 6.5%)
• 2921: Amine-function compounds (76 codes, General duty Free to 6.5%)
• 2922: Oxygen-function amino-compounds (72 codes, General duty Free to 6.5%)
• 2923: Quaternary ammonium salts and hydroxides; lecithins and other phosphoaminolipids, whether or not chemically defined (7 codes, General duty Free to 6.2%)
• 2924: Carboxyamide-function compounds; amide-function compounds of carbonic acid (47 codes, General duty Free to 6.5%)
• 2925: Carboxyimide-function compounds (including saccharin and its salts) and imine-function compounds (14 codes, General duty Free to 6.5%)
• 2926: Nitrile-function compounds (22 codes, General duty Free to 6.5%)
• 2927: Diazo-, azo- or azoxy-compounds (8 codes, General duty Free to 6.5%)
• 2928: Organic derivatives of hydrazine or of hydroxylamine (5 codes, General duty Free to 6.5%)
• 2929: Compounds with other nitrogen function (18 codes, General duty Free to 6.5%)
• 2930: Organo-sulfur compounds (40 codes, General duty Free to 6.5%)
• 2931: Other organo-inorganic compounds (46 codes, General duty Free to 6.5%)
• 2932: Heterocyclic compounds with oxygen hetero-atom(s) only (34 codes, General duty Free to 6.5%)
• 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only (128 codes, General duty Free to 6.5%)
• 2934: Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds (43 codes, General duty Free to 6.5%)
• 2935: Sulfonamides (19 codes, General duty Free to 6.5%)
• 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 (18 codes, General duty Free)
• 2937: Hormones, prostaglandins, thromboxanes and leukotrienes, natural or reproduced by synthesis; derivatives and structural analogues thereof, including chain modified polypeptides, used primarily as hormones (29 codes, General duty Free)
• 2938: Glycosides, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives (2 codes, General duty 1.5% to 3.7%)
• 2939: Alkaloids, natural or reproduced by synthesis, and their salts, ethers, esters and other derivatives (24 codes, General duty Free to 6.5%)
• 2940: Sugars, chemically pure, other than sucrose, lactose, maltose, glucose and fructose; sugar ethers, sugar acetals and sugar esters, and their salts, other than products of heading 2937, 2938 or 2939 (2 codes, General duty Free to 5.8%)
• 2941: Antibiotics (17 codes, General duty Free to 3.5%)
• 2942: Other organic compounds (5 codes, General duty Free to 6.5%)

Where it sits in the schedule

Chapter 29 is in Section VI of the Harmonized System, chemical products (chapters 28 to 38). Rates are those printed in the 2026 HTS Revision 23; Chapter 99 duties (Section 232, Section 301, IEEPA) are charged on top and are not included.