Pteridine Powder from Germany
Pteridine, a fused pyrimido-pyrimidine nitrogen heterocyclic system core to folate and flavin structures. Used in vitamin synthesis; HTS 2933.99.9701 as other nitrogen heterocycles.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• UV-Vis spectrum confirming pteridine chromophore
• Vitamin intermediate status requires FDA GRAS documentation
• Oxidation-sensitive; nitrogen purged packaging mandatory