Phenprobamate from Japan
Phenprobamate is an aromatic cyclic carbamate (ureine derivative) used as a muscle relaxant and anxiolytic medication. Classified under HTS 2924.21.20.00 as it matches products in additional U.S. note 3 to section VI for regulated cyclic amides. Its carboxyamide-function carbonic acid structure fits the heading's chemical definition.
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
• Require DEA import permit if scheduled as controlled substance; verify current status before shipment
• Provide pharmacopeia reference standards to confirm purity meets note 3 specifications
• Avoid bulk packaging that could imply industrial use, risking reclassification outside pharmaceutical context