HTS tariff line · chapter 29
2934.91.00
Aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam (INN), pemoline (INN), phendimetrazine (INN), phenmetrazine (INN) and sufentanil (INN); salts thereof
Analysis
HTS 2934.91.00 covers aminorex (INN), brotizolam (INN), clotiazepam (INN), cloxazolam (INN), dextromoramide (INN), haloxazolam (INN), ketazolam (INN), mesocarb (INN), oxazolam… under heading 2934 (nucleic acids and their salts, whether or not chemically defined; other heterocyclic…).
Neighbouring lines carry rates from duty-free to 6.5%, so the exact line matters. The widest gap is with 2934.99.90 (other: other), at 6.5%: a product that belongs there but is entered here, or the reverse, changes the duty by 6.5 percentage points.
Goods classified here enter the United States duty-free at the general (normal trade relations) rate, as do about 26% of the 1050 tariff lines in chapter 29. Free here means free of the base duty only: origin-specific Chapter 99 duties such as Section 301 can still be owed.
Census statistics map these goods to NAICS 325412 (Pharmaceutical Preparation Manufacturing), an industry of 1,436 US establishments employing 170,029 people. That is the industry code a US manufacturer of the same product would normally use.
Every edition we compared, from Jan 2023 to Oct 2026 (Rev. 22), shows the same general rate of Free.
Neighbouring lines
| Line | Description | General rate |
|---|---|---|
| 2934.10.10 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2934.10.20 | Aromatic or modified aromatic: other | 6.5% |
| 2934.10.70 | 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one; Ethyl 2-(2-aminothiazol-4-yl)-2- hydroxyiminoacetate; Ethyl 2-(2-aminothiazol-4-yl)-2- methoxyiminoacetate; 2-Methyl-4-isothiazolin- 3-one; 2-n-Octyl-4-isothiazolin-3-one; and Thiothiamine hydrochloride | Free |
| 2934.10.90 | Other: other | 6.5% |
| 2934.20.05 | N-tert-Butyl-2-benzothiazolesulfenamide | 6.5% |
| 2934.20.10 | 2,2'-Dithiobisbenzothiazole | 6.5% |
| 2934.20.15 | 2-Mercaptobenzothiazole; andN-(Oxydiethylene)benzothiazole-2-sulfenamide | 6.5% |
| 2934.20.20 | 2-Mercaptobenzothiazole, sodium salt (2-Benzothiazolethiol, sodium salt) | 6.5% |
| 2934.20.25 | 2-Amino-5,6-dichloro benzo thiazole; 2-(4-Amino phenyl)-6-methyl benzo thiazole-7- sulfonic acid; 2-Amino-6-nitro benzo thiazole; andN,N-Di cyclo hexyl-2-benzo thiazole sulfenamide | Free |
| 2934.20.30 | 2-Amino-6-methoxy benzo thiazole; 2-Amino-6-methyl benzo thiazole; 6-Ethoxy-2-benzo thiazo lethiol; 3-Methyl benzo thiazole-2-hydrazone; and Primuline base | 5.8% |
| 2934.20.35 | Other: pesticides | 6.5% |
| 2934.20.40 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2934.20.80 | Other: other | 6.5% |
| 2934.30.12 | 2-(Trifluoromethyl)phenothiazine | 6.5% |
| 2934.30.18 | Ethyl (1H-phenothiazin-2,4,1)carbamate | Free |
| 2934.30.23 | Antidepressants, tranquilizers and other psychotherapeutic agents | 6.5% |
| 2934.30.27 | Drugs: other | 6.5% |
| 2934.30.43 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2934.30.50 | Other: other | 6.5% |
| 2934.92.00 | Other: other fentanyls and their derivatives | 6.5% |
| 2934.99.01 | Mycophenolate mofetil | Free |
| 2934.99.03 | 2-Acetylbenzo(b)thiophene; 3-Methylene-7-(2-phenoxyacetamido)- cephan-4-carboxylic acid, p-nitrobenzyl ester, 1-oxide; and Naphth[1,2-d]-[1,2,3]-oxadiazole-5-sulfonic acid and its sodium salt | Free |
| 2934.99.05 | 5-Amino-3-phenyl-1,2,4-thiadiazole (3-Phenyl-5-amino-1,2,4-thiadiazole); 2-Hydroxybenzoxazole (Benzoxazolone); 4-Phenylmorpholine; 1,9-Thianthrenedicarboxylic acid; and Thioxanthene-9-one (Thioxanthone) | 5.8% |
| 2934.99.06 | 7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid and its salts | 6.5% |
| 2934.99.07 | Ethyl 2-[4-[(6-chloro-2-benzoxazolyl)oxy]- phenoxy]propanoate (Fenoxaprop-ethyl) | Free |
| 2934.99.08 | 2,5-Diphenyloxazole | 6.5% |
| 2934.99.09 | 1,2-Benzisothiazolin-3-one | Free |
| 2934.99.11 | 2-tert-Butyl-4-(2,4-dichloro-5- isopropoxyphenyl)-Δ²-1,3,4- oxadiazolin-5-one; 3-Isopropyl-1H-2,1,3- benzothiadiazin-4-(3H)-one-2,2- dioxide (Bentazon); andO,O-Diethyl-S-[(6-chloro-2- oxobenzoxazolin-3-yl)methyl]- phosphorodithioate (Phosalone) | 6.5% |
| 2934.99.12 | Other: fungicides | 6.5% |
| 2934.99.15 | Other: herbicides | 6.5% |
| 2934.99.16 | Other: insecticides | 6.5% |
| 2934.99.18 | Other: other | 6.5% |
| 2934.99.20 | Photographic chemicals | 6.5% |
| 2934.99.30 | Other: drugs | 6.5% |
| 2934.99.39 | Products described in additional U.S. note 3 to section VI | 6.5% |
| 2934.99.44 | Other: other | 6.5% |
| 2934.99.47 | Other: drugs | 3.7% |
| 2934.99.70 | Morpholinoethyl chloride hydrochloride; 2-Methyl-2,5-dioxo-1-oxa-2-phospholan; and (6R-trans)-7-Amino-3-methyl-8-oxo-5- thia-1-azabicyclo[4.2.0]-oct-2-ene-2- carboxylic acid | Free |
| 2934.99.90 | Other: other | 6.5% |