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2-Methyl-4-isothiazolin-3-one (MIT)

2-Methyl-4-isothiazolin-3-one (MIT) is a methyl-substituted isothiazolinone used as a preservative in cosmetics, water treatment, and household products. Its unfused thiazole ring structure is the basis for classification under tariff item 2934.10.00. This chemically defined heterocyclic compound is imported in bulk for formulation into finished products.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

More Specific Codes

This product may fall under a more specific subheading:

Alternative Classifications

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

3808.92.10Higher: 6.5% vs Free

If imported as a formulated preservative preparation

If the product is mixed with other ingredients for use as a preservative, it may fall under disinfectants or preservatives of heading 38.08.

2934.99.00Same rate: Free

If the isothiazolinone ring is not considered a thiazole ring

Other heterocyclic compounds with nitrogen hetero-atom(s) only may apply if the ring structure is classified differently.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Verify whether the product is subject to the Cosmetic Regulations under the Food and Drugs Act, as this may require additional notification to Health Canada

• Ensure the product is labeled with its concentration and safety information, as CBSA may inspect for compliance with consumer product safety standards

• If importing for water treatment, confirm it meets the requirements of the Canadian Environmental Protection Act

Related Products under Tariff item 2934.10.00

2,4-Thiazolidinedione

2,4-Thiazolidinedione is the core structure for glitazone antidiabetic drugs such as pioglitazone, featuring a saturated thiazolidine ring (hydrogenated thiazole). Its unfused thiazole ring, whether or not hydrogenated, is the basis for classification under tariff item 2934.10.00. This chemically defined compound is imported in bulk for pharmaceutical synthesis.

2-Acetylamino-5-nitrothiazole

2-Acetylamino-5-nitrothiazole is a nitro-substituted thiazole compound used as an intermediate in veterinary pharmaceutical synthesis. The unfused thiazole ring in its structure is the basis for classification under tariff item 2934.10.00. It is a chemically defined organic compound imported in bulk for industrial processing.

2-Aminothiazole

2-Aminothiazole is an aromatic heterocyclic compound with an unfused thiazole ring and an amino group at the 2-position. It is used primarily as a pharmaceutical intermediate. The structure directly matches tariff item 2934.10.00.

2-Aminothiazole-4-Acetic Acid

2-Aminothiazole-4-acetic acid is a thiazole derivative featuring an amino group and an acetic acid moiety on the aromatic ring. It is a key intermediate in the synthesis of cephalosporin antibiotics, and its structure contains an unfused thiazole ring, qualifying it under tariff item 2934.10.00.

2-Mercaptothiazoline

2-Mercaptothiazoline features a hydrogenated thiazole ring (thiazoline) with a mercapto group. It is used in rubber vulcanization. The hydrogenated thiazole ring is covered by tariff item 2934.10.00, which includes 'whether or not hydrogenated'.

2-Methyl-4-Amino-5-Hydroxymethylpyrimidine Thiazole Intermediate

2-Methyl-4-amino-5-hydroxymethylpyrimidine thiazole intermediate is a key intermediate for thiamine synthesis. It contains an unfused thiazole ring and is used exclusively in pharmaceutical chemical manufacturing. The structure matches the description of tariff item 2934.10.00.