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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If classified as vitamin B1, B6 or derivatives thereof
Vitamin B complex has specific Chapter 29 heading (2936) taking precedence over general thiazoles.
If when put up in dosage form for retail therapeutic use
Medicinal preparations containing the compound shift to Chapter 30 per exclusions.
If in food supplement mixtures for retail sale
Food preparations with vitamin derivatives classify under Chapter 21.
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Import Tips & Compliance
• Provide vitamin analog certification and USP/NF reference standards
• Declare hydrochloride salt content precisely for accurate duty assessment
• Include stability studies for light-sensitive thiazole structure
Related Products 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.