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Industrial Grade Methyl Ethyl Ketoxime 99.5%

Industrial Grade Methyl Ethyl Ketoxime (MEKO) is a high-purity (99.5%) organic derivative of hydroxylamine, used as a catalyst blocker and anti-skinning agent in 2K polyurethane coatings and silicone sealants. Its chemical structure, a ketoxime derived from hydroxylamine, falls squarely under tariff item 2928.00.00 as an organic derivative of hydroxylamine. The product is a separate chemically defined compound, meeting Chapter 29 criteria.

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

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Import Tips & Compliance

• Ensure the product is classified as a separate chemically defined compound; have a Certificate of Analysis ready

• Verify the solvent content—if dissolved, it must be for safety or transport only

• Declare the correct 8-digit code 2928.00.00 to avoid penalties

Related Products under Tariff item 2928.00.00

1-Phenyl-3-pyrazolidinone (Phenidone)

1-Phenyl-3-pyrazolidinone (Phenidone) is a cyclic hydrazine derivative with an aromatic phenyl substituent. It is chemically defined and used as a photographic developer and intermediate. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the aromatic ring not affecting classification.

2,4-Dinitrophenylhydrazine

2,4-Dinitrophenylhydrazine (DNPH) is a dinitrated phenylhydrazine derivative, chemically defined, used for aldehyde and ketone detection. It is a hydrazine derivative with nitro groups, which are not considered nitrogen functions per Chapter 29 Note 4. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine.

4-Nitrophenylhydrazine

4-Nitrophenylhydrazine is a nitrated derivative of phenylhydrazine, a chemically defined organic compound. It is used in carbonyl compound detection and synthesis. As a hydrazine derivative, it falls under tariff item 2928.00.00, with the nitro group not affecting classification per Chapter 29 Note 4.

Acetylphenylhydrazine

Acetylphenylhydrazine is an N-acetyl derivative of phenylhydrazine, retaining the aromatic hydrazine core. It is chemically defined and used as an intermediate in organic synthesis. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the acetyl group not altering the classification.

Benzylideneacetone Tosylhydrazone

Benzylideneacetone Tosylhydrazone is a condensation product of an aromatic aldehyde, ketone, and tosylhydrazine, retaining hydrazine derivative character. It is chemically defined and used in organic synthesis. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the tosyl group not affecting classification.

Girard's Reagent T

p-Toluenesulfonylhydrazide (TSH) is an aromatic sulfonyl hydrazide with a tosyl group attached to hydrazine. It is chemically defined and used as a reagent in organic synthesis. It falls under tariff item 2928.00.00 as an organic derivative of hydrazine, with the sulfonyl group not affecting classification per Chapter 29 Note 6.