Naphthalene Trisulfonic Acid Sodium Salt from Germany
1,3,6-Naphthalenetrisulfonic acid trisodium salt, though containing multiple sulfo groups, classified under HTS 2904.10.32.00 per note 3. Dye manufacturing intermediate.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Confirm trisulfonation pattern via HPLC
• High water solubility (>50%) characteristic
• Dye precursor; verify end-use declaration