Potassium Hydroquinone Disulfonate
Potassium hydroquinone disulfonate, an inorganic salt of hydroquinone, used in photographic processing. Per Chapter 29 Note 5(C), salts of organic compounds are classified with the organic compound, so it falls under tariff item 2907.22.00 as a salt of hydroquinone.
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 compound is considered an organo-sulfur compound with sulfur directly linked to carbon.
Heading 29.30 covers organo-sulfur compounds.
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
• Provide the chemical formula and salt formation details to confirm classification
• Ensure the salt is not more specifically covered by another heading (e.g
• organo-sulfur compounds)
• Document the photographic use to support the tariff item
Related Products under Tariff item 2907.22.00
4-Methoxyphenol (Hydroquinone Monomethyl Ether Technical Grade)
Technical grade 4-methoxyphenol, a hydroquinone derivative (monomethyl ether), used as an intermediate in chemical synthesis. It is a separate chemically defined organic compound, but as a derivative of hydroquinone, it falls under tariff item 2907.22.00 per subheading note 1, provided it is not more specifically covered elsewhere.
Adox Hydroquinone for Analog Photography
Photographic grade hydroquinone (1,4-dihydroxybenzene) supplied as a separate chemically defined organic compound for use in film developers. It falls under tariff item 2907.22.00 as a polyphenol (quinol) meeting Chapter 29 Note 1(a) purity criteria.
Agfa Photographic Hydroquinone Powder
Fine powder hydroquinone of photographic specification, a separate chemically defined polyphenol used in motion picture film developers. It is classifiable under tariff item 2907.22.00 per Chapter 29 Note 1(a), as it contains no added substances beyond permitted impurities.
FujiFilm Hydroquinone Super Fine Crystals
Ultra-fine crystal hydroquinone engineered for rapid dissolution in photographic developers, meeting the definition of a separate chemically defined polyphenol. It is classified under tariff item 2907.22.00 as hydroquinone (quinol) per Chapter 29 Note 1(a).
Hydroquinone Monomethyl Ether (HQMME)
Hydroquinone monomethyl ether (HQMME), a substituted polyphenol derivative used as a polymerization inhibitor. It is classifiable under tariff item 2907.22.00 as a derivative of hydroquinone, per subheading note 1, unless more specifically covered by another heading.
Hydroquinone Technical Grade 99%
Technical grade hydroquinone with 99% purity, suitable for industrial applications such as photographic developers and rubber antioxidants. It is a separate chemically defined polyphenol, classifiable under tariff item 2907.22.00 per Chapter 29 Note 1(a).