Biligrafin Acid Pharmaceutical Grade Powder from China
High-purity biligrafin acid powder meets USP standards for synthesis of gallbladder contrast agents. Explicitly under HTS 2924.29.0500 as a named aromatic amide derivative, fitting chapter 29 for chemically defined organic compounds without impurities affecting classification.
Duty Rate — China → United States
17.8%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Require GMP or USP certificates; declare exact CAS (98-30-6 equivalent) to prevent reclassification
• Pitfall: bulk vs retail packing shifts to chapter 30