2933.99—Heterocyclic compounds with nitrogen hetero-atom(s) only, other
General duty rate
Free – 6.5%
Across 34 10-digit lines; pick a line below for the exact rate
Coverage on this page
Up one level: 2933 — Heterocyclic compounds with nitrogen hetero-atom(s) only: (heading)
Plain-English explanation
HTS 2933.99 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Heterocyclic compounds with nitrogen hetero-atom(s) only, other. It sits in Chapter 29: Organic chemicals, Section VI: Products of the Chemical or Allied Industries and rolls up 34 10-digit statistical lines, with general duty rates ranging from Free to 6.5%. 2 AD/CVD orders flag at least one child line.
10-digit lines under 2933.99(34)
Pick a line to view full rate detail and compute landed duty
2933.99.01.00Butyl (R)-2-[4-(5-trifluoromethyl-2- pyridinyloxy)phenoxy]propanoateFree2933.99.02.002-[4-[(6-Chloro-2-quinoxalinyl)oxy]phenoxy]- propionic acid, ethyl esterFree2933.99.05.00Acridine and indoleFree2933.99.06.00α-Butyl-α-(4-chlorophenyl)-1H-1,2,4- triazole-1- propanenitrile (Myclobutanil); andα-[2-(4-Chlorophenyl)ethyl]-α-phenyl-1H- 1,2,4-triazole-1-propanenitrile (Fenbuconazole)6.5% 2933.99.08.00Aceto acetyl-5-amino benz imidazolone; 3-(2H-Benzo triazol-2-yl)-5-(tert-butyl)-4- hydroxy benzene propanoic acid, C7-C9 branched or linear alkyl esters; 2-(2H-Benzotriazol-2-yl)-6-dodecyl-4- methyl phenol, in liquid form, branched and linear; and 1,3,3-Trimethyl-2-methyleneindolineFree2933.99.11.00CarbazoleFree2933.99.12.006-Bromo-5-methyl-1H-imidazo[4,5-b]- pyridine; 2-sec-Butyl-4-tert-butyl-6-(benzotriazol-2- yl)phenol; 2-tert-Butyl-4-methyl-6-(5-chlorobenzotri- azol-2-yl)phenol; 2,4-Di-tert-butyl-6-(benzotriazol-2-yl)phenol; 2,4-Di-tert-butyl-6-(5-chlorobenzotriazol-2- yl)phenol; 2,3-Dichloro-6-quinoxalinecarbonyl chloride; 1-Hydroxy-2-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid; 2-Hydroxy-3-carbazolecarboxylic acid, sodium salt; Iminodibenzyl(10,11-dihydro-5H-dibenz- [b,f]azepine); Indoline; 3-Methylbenzo[f]quinoline; 2-Methylindoline; 2-Methylmercaptobenzimidazole; 1-Methyl-2-phenylindole; 1-Methylpyrazine; 2,4-Methylpyrazolic acid; 2-Phenylbenzimidazole; 2-Phenylindole; Tetramethylpyrazine; 2,3,5-Triphenyltetrazolium chloride;dl-Tryptophan; and Vinylcarbazole, monomer5.8% 2933.99.14.005-Amino-4-chloro-α-phenyl-3- pyridazinone6.5%2933.99.16.00o-Diquat dibromide (1,1'-Ethylene- 2,2'-dipyridylium dibromide)Free2933.99.17.01Insecticides6.5% 2933.99.22.00Other6.5% 2933.99.24.00Photographic chemicals6.5% 2933.99.26.00Antihistamines6.5%2933.99.42.00Acriflavine; Acriflavine hydrochloride; Carbadox; and PyrazinamideFree2933.99.46.00Other6.5% 2933.99.51.00Hydralazine hydrochlorideFree2933.99.53.00Other6.5% 2933.99.55.10Tolmetin6.5%2933.99.55.20Tolmetin sodium dihydrate6.5%2933.99.55.30Tolmetin sodium (anhydrous)6.5%2933.99.55.90Other6.5%2933.99.58.00Droperidol; and Imipramine hydrochlorideFree2933.99.61.00Other6.5%2933.99.65.00Anticonvulsants, hypnotics and sedatives6.5%2933.99.70.00Other6.5%2933.99.75.00Other6.5%2933.99.79.00Products described in additional U.S. note 3 to section VI6.5% 2933.99.82.10Benzotriazole (CAS No. 95-14-7)6.5% 2933.99.82.20Tolyltriazole (CAS No. 29385-43-1)6.5% 2933.99.82.90Other6.5% 2933.99.85.003-Amino-1,2,4-triazole3.7%2933.99.89.00HexamethyleneimineFree2933.99.90.00Drugs3.7%2933.99.97.01Other6.5% AD/CVD orders(2)
Antidumping or countervailing orders covering one or more lines under 2933.99
Frequently asked questions
What does HTS 2933.99 cover?
HTS 2933.99 is a 6-digit subheading of the U.S. Harmonized Tariff Schedule covering Heterocyclic compounds with nitrogen hetero-atom(s) only, other. It belongs to Chapter 29 and rolls up 34 10-digit statistical lines that brokers actually file at entry.
What is the duty rate for HTS 2933.99?
General (Column 1) duty rates for the 10-digit lines under HTS 2933.99 range from Free to 6.5%. The exact rate depends on the specific 10-digit statistical line — pick a line below to see its full rate detail.
How do I find the right 10-digit line under HTS 2933.99?
U.S. Customs requires entries to be filed at the 10-digit statistical level — the broader subheading HTS 2933.99 is not directly fileable. Match your product description to the most specific 10-digit line in the list on this page; if multiple lines could apply, the General Rules of Interpretation (GRIs) and chapter notes determine which one governs.
Are there AD/CVD orders affecting HTS 2933.99?
Yes — 2 AD/CVD orders flag at least one 10-digit line under HTS 2933.99. Whether a specific shipment falls in scope depends on the country of origin and the order's scope determination. See compliance.tandom.ai for full coverage detail.
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