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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Tariff | Surtaxes | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | Free | — | Free |
| 🇲🇽Mexico | Free | — | Free |
| 🇺🇸United States | Free | — | Free |
| 🇩🇪Germany | Free | — | Free |
| 🇯🇵Japan | Free | — | 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.
If the product is considered an organo-sulfur compound
Chapter 29 Note 6 excludes sulfonated derivatives that give the nature of sulfonated derivatives.
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
• Confirm the product is not classified as an organo-sulfur compound under heading 2930—it is a hydrazine derivative
• Have the chemical structure and purity certificate
• Ensure no added substances that could reclassify it
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.
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.