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
Nucleic acids and their salts, whether or not chemically defined; other heterocyclic compounds: > Compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure: > Other: > 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
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Products classified under HTS 2934.10.70.00
4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one
A specific chlorinated isothiazolinone compound containing an unfused thiazole ring, used primarily as a broad-spectrum biocide in industrial applications. This chemically defined heterocyclic compound falls under HTS 2934.10.70.00 due to its explicit listing and thiazole ring structure as per Chapter 29 notes.
2-n-Octyl-4-isothiazolin-3-one (OIT)
An isothiazolinone biocide with n-octyl substituent on thiazole ring, explicitly named in HTS 2934.10.70.00. Used in paints, coatings, and wood preservatives as antimicrobial agent. Qualifies as chemically defined heterocyclic compound under Chapter 29.
2-Methyl-4-isothiazolin-3-one (MIT)
Methyl-substituted isothiazolinone listed specifically under HTS 2934.10.70.00, containing unfused thiazole ring. Common preservative in cosmetics, water treatment, and household products. Classifies as pure heterocyclic compound per Chapter 29 scope.
Ethyl 2-(2-aminothiazol-4-yl)-2-methoxyiminoacetate
Key pharmaceutical intermediate with aminothiazole ring explicitly named in HTS 2934.10.70.00. Used in synthesis of third-generation cephalosporin antibiotics like cefotaxime. Qualifies as chemically defined thiazole heterocyclic under Chapter 29 notes.
Ethyl 2-(2-aminothiazol-4-yl)-2-hydroxyiminoacetate
Hydroxyimino variant of aminothiazole intermediate listed in HTS 2934.10.70.00. Synthetic precursor for beta-lactam antibiotics with unfused thiazole ring structure. Pure compound classification under Chapter 29 heterocyclic provisions.
Thiothiamine Hydrochloride
Thiazole-containing vitamin B1 derivative explicitly listed under HTS 2934.10.70.00. Used in nutritional supplements and pharmaceutical formulations as thiamine analog. Classifies as chemically defined heterocyclic salt per Chapter 29 note on salts.