Mercaptopurine from Japan
Mercaptopurine (6-MP) is a purine antimetabolite chemotherapy drug with thiopurine heterocyclic structure, used in leukemia treatment. Falls under HTS 2934.99.4700 as organo-sulfur heterocyclic drug, excluded from heading 2930 by classification notes. Light-sensitive pharmaceutical requiring special handling.
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
• Light-protected packaging mandatory; oncology GMP certification; genetic testing data may be required for pharmacogenomics compliance