1-Naphthylamine-5-sulfonic Acid (Laurent's Acid) from Japan
Laurent's acid, a monosulfonated 1-naphthylamine derivative, is classified under HTS 2921.45.60.00 as specified in additional U.S. note 3. Used in manufacturing of acid dyes for wool and silk.
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
• Include batch-specific chromatograms confirming >98% purity
• Comply with EPA chemical import notification requirements
• Declare as 'not for medicinal use' to avoid pharmaceutical chapter confusion