2904.10.32.00/Naphthalene Trisulfonic Acid Sodium Salt/Japan

Naphthalene Trisulfonic Acid Sodium Salt from Japan

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 — Japan → United States

12.5%

Rate breakdown

9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%

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Import Tips

• Confirm trisulfonation pattern via HPLC

• High water solubility (>50%) characteristic

• Dye precursor; verify end-use declaration