Sildenafil Citrate API from Germany
Sildenafil citrate, the active ingredient in Viagra, contains a pyrazolo[4,3-d]pyrimidine structure but classifies under unfused pyrazole HTS 2933.19.3500 as a pharmaceutical drug. Used for erectile dysfunction and pulmonary hypertension treatment.
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
• Verify citrate salt formation per note 5(C)(1); provide counterion analysis
• Include polymorph Form I certificate; FDA bioequivalence data required
• Prevent 3004 misclassification with 'Bulk API - Not for Direct Human Use' labeling