HTS US: 2934.XX.XXXX
Description
This heading encompasses nucleic acids and their salts, whether or not chemically defined, as well as a broad range of other heterocyclic compounds. These substances are primarily characterized by the presence of nitrogen-containing rings in their chemical structures, often used in pharmaceuticals, agrochemicals, and industrial chemicals.
The compounds classified under this code include but are not limited to:
- Thiazole-containing compounds: Molecules featuring an unfused thiazole ring, whether hydrogenated or not, with applications ranging from antibiotics to biochemical reagents.
- Benzothiazole derivatives: Compounds with a benzothiazole ring system, widely used in rubber vulcanization accelerators, pesticides, and dyes.
- Phenothiazine-based chemicals: Featuring a phenothiazine ring system, these include various psychotherapeutic drugs, insecticides, and dyes.
- Other heterocyclic compounds: A diverse group including fentanyl derivatives, fungicides, herbicides, and photographic chemicals.
Code Hierarchy
- Section VI: Chemical Products (Chapters 28-38)
- Chapter 29: Organic Chemicals
- Heading 2934: Nucleic acids and their salts; other heterocyclic compounds
- US HTS Code (10-digit):
2934.XX.XXXX– Further specifies the exact chemical structure and application of the compound.
Detailed Breakdown of Subheadings
The 4-digit heading 2934 subdivides into specific 6-digit and 10-digit codes describing precise compounds or groups of compounds based on their heterocyclic ring structure and chemical nature.
| HS/HTS Code | Description | Examples & Notes |
|---|---|---|
| 2934.10 | Compounds containing an unfused thiazole ring (whether or not hydrogenated) | Includes various thiazole derivatives used in pharmaceuticals and industrial applications. |
| 2934.10.10.00 | Products described in additional U.S. note 3 to section VI | Special compounds noted by U.S. regulations. |
| 2934.10.20.00 | Other compounds containing an unfused thiazole ring | General category for thiazole derivatives not otherwise specified. |
| 2934.10.70.00 | Specific thiazole compounds | Includes 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one; Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate; 2-Methyl-4-isothiazolin-3-one; Thiothiamine hydrochloride, among others. |
| 2934.10.90.00 | Other thiazole ring compounds | Catch-all for thiazole derivatives not classified above. |
| 2934.20 | Compounds containing a benzothiazole ring-system (not further fused) | Widely used in rubber accelerators, pesticides, and dyes. |
| 2934.20.05.00 | N-tert-Butyl-2-benzothiazolesulfenamide | Common vulcanization accelerator in rubber industry. |
| 2934.20.10.00 | 2,2′-Dithiobisbenzothiazole | Used in chemical synthesis and rubber processing. |
| 2934.20.15.00 | 2-Mercaptobenzothiazole; N-(Oxydiethylene)benzothiazole-2-sulfenamide | Important industrial chemicals for rubber and pesticide production. |
| 2934.20.20.00 | 2-Mercaptobenzothiazole, sodium salt | Water-soluble salt form used in various applications. |
| 2934.20.25.00 | Various substituted benzothiazoles | Includes 2-Amino-5,6-dichlorobenzothiazole and related compounds. |
| 2934.20.30.00 | Other benzothiazole derivatives and pesticides | Includes Primuline base and specific pesticides. |
| 2934.20.35.00 | Pesticides | Specific pesticides under benzothiazole derivatives. |
| 2934.20.40.00 | Products described in additional U.S. note 3 to section VI | Special regulatory noted products. |
| 2934.20.80.00 | Other benzothiazole compounds | Miscellaneous compounds not otherwise specified. |
| 2934.30 | Compounds containing a phenothiazine ring-system (not further fused) | Includes psychotherapeutic agents and dyes. |
| 2934.30.12.00 | 2-(Trifluoromethyl)phenothiazine | Specific phenothiazine derivative. |
| 2934.30.18.00 | Ethyl (1H-phenothiazin-2,4,1)carbamate | Chemical intermediate or pharmaceutical compound. |
| 2934.30.23.00 | Antidepressants, tranquilizers, and other psychotherapeutic agents | Medicinal use compounds. |
| 2934.30.27.00 | Other phenothiazine compounds | Additional phenothiazine derivatives not specifically listed. |
| 2934.30.43.00 | Products described in additional U.S. note 3 to section VI | Regulated phenothiazine substances. |
| 2934.30.50.00 | Other phenothiazine chemicals | Miscellaneous compounds within this category. |
| 2934.91.00.00 | Specific psychotropic substances and salts | Includes Aminorex, brotizolam, clotiazepam, ketazolam, pemoline, sufentanil, and others. |
| 2934.92.00.00 | Other fentanyls and their derivatives | Potent opioid derivatives with medical and regulatory importance. |
| 2934.99 | Other heterocyclic compounds | Diverse group of chemicals not covered above. |
| 2934.99.01.00 | Mycophenolate mofetil | Immunosuppressant drug. |
| 2934.99.03.00 | Miscellaneous benzothiophene and oxadiazole derivatives | Specialty chemicals and reagents. |
| 2934.99.05.00 | Various heterocyclic acids and bases | Includes 5-Amino-3-phenyl-1,2,4-thiadiazole and others. |
| 2934.99.06.00 | 7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid and its salts | Photographic and chemical industry use. |
| 2934.99.07.00 | Fenoxaprop-ethyl (herbicide) | Selective herbicide for cereals. |
| 2934.99.08.00 | 2,5-Diphenyloxazole | Fluorescent brightener and scintillator. |
| 2934.99.09.00 | 1,2-Benzisothiazolin-3-one | Biocide and preservative. |
| 2934.99.11.00 | Various pesticides including Bentazon and Phosalone | Herbicides and insecticides of regulatory importance. |
| 2934.99.12.00 | Fungicides | Compounds used to control fungal diseases. |
| 2934.99.15.00 | Herbicides | Plant growth regulators and weed killers. |
| 2934.99.16.00 | Insecticides | Compounds used for insect control. |
| 2934.99.18.00 | Other heterocyclic compounds | Miscellaneous, not otherwise specified. |
| 2934.99.20.00 | Photographic chemicals | Used in film and photographic processing. |
| 2934.99.30.00 | Drugs | Pharmaceutical active ingredients. |
| 2934.99.39.00 | Products described in additional U.S. note 3 to section VI | Special regulatory status substances. |
| 2934.99.44.00 | Other compounds | Miscellaneous heterocyclic compounds. |
| 2934.99.47.00 | Drugs | Additional pharmaceutical compounds. |
| 2934.99.70.00 | Specific chemical substances | 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. |
| 2934.99.90.01 | Other compounds | Catch-all for unclassified heterocyclic chemicals. |
What is NOT Classified Here?
This heading does not include:
- Non-heterocyclic organic compounds: These fall under other chapters of the HTS.
- Simple nucleotides or nucleosides: Unless chemically defined or salts, they are classified elsewhere.
- Inorganic compounds: Covered under different headings in Section VI.
Notes
- Regulatory Restrictions: Many compounds under this heading, especially pharmaceuticals and pesticides, are subject to strict regulatory controls by agencies such as the FDA and EPA.
- Duty Rates: Vary widely depending on the compound’s use, toxicity, and regulatory status. Some chemicals may be duty-free if used for research or medicinal purposes.
- Import Documentation: Importers must provide detailed chemical descriptions, safety data sheets, and sometimes permits for controlled substances.
Declaration Example
Product: Shipment of 2-Mercaptobenzothiazole, sodium salt for industrial rubber production.US HTS Code:
2934.20.20.00Unit of Quantity: Kilogram (kg)
General Duty Rate: See current USHTS schedule; often subject to chemical regulations
Additional Requirements: Material Safety Data Sheet (MSDS) and EPA chemical import certification.
Related HTS Codes
- HTS 2933: Heterocyclic compounds with nitrogen hetero-atom(s) only, other than nucleic acids and their salts.
- HTS 2935: Sulphonamides.
- HTS 3004: Medicaments consisting of mixed or unmixed products.
