Tritiated Thymidine (3H-TdR) from Japan
Radioactively labeled nucleoside [methyl-3H]thymidine used in DNA synthesis research. As an organic compound of tritium, it qualifies under HTS 2844.41.00.00 per Chapter 28 Note 1 extensions for radioactive isotopes. Supplied in ethanol solution at high specific activity.
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
• CDC/USDA permits for biological materials; maintain -20°C chain of custody; declare parent nuclide and activity accurately