BIT 20N 2-Methyl-4-Isothiazolin-3-one Preservative

20% 2-methyl-4-isothiazolin-3-one aqueous solution for metalworking fluid preservation. HTS 3808.99.3000 classification for specifically listed isothiazolinone biocides.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽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.

3403.19.50.00Higher: 40.8% vs 35%

If lubricating preparations with biocides

Metalworking fluids classified as lubricants when biocide secondary

3824.99Lower: 15% vs 35%

If bulk metalworking additive

Industrial fluid additives without retail packing

2934.99Lower: 16.5% vs 35%

If pure BIT without preservative formulation

Chemical compounds by structure when not formulated biocides

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Metalworking fluid compatibility testing; Biocide depletion rate documentation; Nitrite-free formulation certification

Related Products under HTS 3808.99.30.00

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A water-based preservative formulation containing 5-chloro-2-methyl-4-isothiazolin-3-one (CMIT) and 2-methyl-4-isothiazolin-3-one (MIT) at a 3:1 ratio, used in personal care products like shampoos and lotions. It falls under HTS 3808.99.3000 as a formulated biocide specifically based on these isothiazolinone mixtures, put up for retail or preparation use to prevent microbial growth.

Sea-Nine 211N DCOIT Marine Antifouling Biocide

A concentrated formulation of 4,5-dichloro-2-n-octyl-4-isothiazolin-3-one (DCOIT) used in marine paints to prevent barnacle and algae growth on ship hulls. Classified under HTS 3808.99.3000 due to its specific isothiazolinone active ingredient in a formulated biocide preparation for controlled application.

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OIT Industrial Water Treatment Biocide

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CMIT/MIT/MIT Tri-Active Preservative Blend

Broad-spectrum antimicrobial blend combining CMIT, MIT, and additional 2-methyl-4-isothiazolin-3-one for paint and adhesive preservation. Specifically covered under HTS 3808.99.3000 for isothiazolinone-based formulated biocides.

DCOIT Wood Preservative Concentrate

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