1-Naphthol-4-sulfonic acid monohydrate from Japan
Hydrated form of 1-Naphthol-4-sulfonic acid, stable for transport in dye production. Remains under HTS 2908.99.06.00 as water-associated product of (d) note, not altering chemical classification.
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%
Import Tips
• Document hydrate water content separately from solvent notes
• Ensure stabilization doesn't exceed preservation limits
• Test for consistency in batch declarations