Biligrafin Acid from Japan
Biligrafin acid is a specific aromatic cyclic amide derivative used primarily as a contrast agent in medical imaging procedures like cholangiography. It falls under HTS 2924.29.0500 as it is explicitly named in the tariff description for carboxyamide-function compounds that are aromatic cyclic amides. This chemically defined organic compound is imported in pure form for pharmaceutical 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
• Verify purity certificates and provide chemical safety data sheets (SDS) for customs clearance; ensure FDA compliance for pharmaceutical precursors
• Common pitfall: incorrect labeling as a finished drug instead of bulk chemical