4-Dimethylaminopyridine (DMAP) from Japan
4-Dimethylaminopyridine (DMAP) is a pyridine catalyst with an unfused ring, widely used in organic synthesis for acyl transfer reactions. HTS 2933.39.61 applies via additional U.S. note 3 to section VI for listed pyridine derivatives. Essential lab reagent for peptide manufacturing.
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
• Provide peer-reviewed references confirming catalytic use to avoid reagent misclassification
• Small package quantities (<1kg) may qualify for de minimis entry; aggregate carefully
• Include GHS labels meeting OSHA HazCom standards on all containers