7-Nitronaphth[1,2]oxadiazole-5-sulfonic acid monohydrate from Germany
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.
Duty Rate — Germany → United States
6.5%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• 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