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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If imported as formulated biocide disinfectant >5% concentration
Formulated pesticide products containing this compound as active ingredient shift to Chapter 38 headings.
If similar thiazole structure but not one of the six specifically named compounds
Other unfused thiazole compounds fall under the residual 'other' subheading within 2934.10.
If supplied as aqueous solution with stabilizers for safety/transport
Chemical preparations not chemically defined may classify under Chapter 38 prepared binders per note exclusions.
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The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Provide detailed chemical analysis certificates confirming identity and purity to match the exact listed compound
• Ensure SDS and handling documentation for hazardous biocide classification during customs clearance
• Verify no added solvents beyond transport allowances per Chapter 29 note (e) to avoid reclassification
Related Products under HTS 2934.10.70.00
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.