Acyclovir Active Ingredient from China
Acyclovir (9-(2-hydroxyethoxymethyl)guanine), synthetic guanine analog with nitrogen heterocyclic purine structure for antiviral medication. Pure API form under HTS 2933.99.9701.
Duty Rate — China → United States
19%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• DMF Type II required; ANDA reference standards
• Polymorph Form I certificate; different forms affect bioavailability claims
• Controlled substance precursor monitoring