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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+10.0%10%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3302.10Same rate: 10%

If incorporated into final cosmetic preparation

Mixtures for retail cosmetic use classify under Chapter 33, not pure Chapter 29 compounds.

3808.94.10.00Higher: 31.5% vs 10%

If as disinfectant goods put up for retail sale

Retail-packaged disinfectants containing MIT shift to Chapter 38 per Chapter 29 exclusion (k).

2934.10.10.00Higher: 31.5% vs 10%

If classified as nucleic acid salt rather than simple thiazole

Nucleic acids/salts have separate specific subheading earlier in 2934.10.

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Import Tips & Compliance

Supply purity certificates (>98% typical) to distinguish from technical grade mixtures

Include REACH/ TSCA documentation for regulatory compliance in chemical notifications

Label containers with GHS hazard pictograms required for thiazole-based sensitizers

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.

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.