7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid monohydrate
Hydrated crystalline form of the acid compound, still classified under HTS 2934.99.06.00 per Chapter Note 2(d) allowing water dissolution. The monohydrate form enhances handling stability for lab and industrial synthesis applications.
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If hydration exceeds 'dissolved in water' Chapter Note 2(d) limits
Excessive water content falls to general heterocyclic provision
If classified as aqueous chemical solution
High water content treated as preparation rather than pure compound
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Specify exact water content (theoretical 8.5% for monohydrate) in COA
• Use desiccated packaging to maintain hydration state during transit
• Avoid classification disputes by confirming water is lattice-bound, not solvent
Related Products under HTS 2934.99.06.00
7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid
A specific aromatic heterocyclic compound featuring a nitronaphthoxadiazole core with a sulfonic acid group, classified under HTS 2934.99.06.00 as one of the enumerated 'other heterocyclic compounds'. This chemically defined organic compound is used primarily as an intermediate in dye synthesis and pharmaceutical production due to its reactive functional groups.
Sodium 7-Nitronaphth[1,2]oxadiazole-5-sulfonate
The sodium salt form of 7-nitronaphth[1,2]oxadiazole-5-sulfonic acid, explicitly covered by HTS 2934.99.06.00. This water-soluble salt maintains the core heterocyclic structure with sulfonate functionality, used in aqueous dye coupling processes and as a reagent in organic synthesis.
Potassium 7-Nitronaphth[1,2]oxadiazole-5-sulfonate
Potassium salt variant of the specific sulfonic acid heterocyclic compound under HTS 2934.99.06.00. Offers higher thermal stability than sodium salt, preferred in certain high-temperature dye fixation processes and pharmaceutical salt screening.
Ammonium 7-Nitronaphth[1,2]oxadiazole-5-sulfonate
Ammonium salt providing volatility advantages in certain dye sublimation processes, covered by HTS 2934.99.06.00 salts provision. The ammonium counterion facilitates thermal decomposition applications in specialty colorants.