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Aminophylline USP from Japan

Aminophylline, theophylline-ethylenediamine complex (1:2), nitrogen heterocyclic purine derivative. HTS 2933.99.8290 as other aromatic heterocyclic compounds with N hetero-atoms only. Used in respiratory pharmaceuticals.

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

,Provide water content analysis (4-8.5% required)

Declare hydrate status (anhydrous vs hydrated forms)

Aminophylline USP from Japan — Import Duty Rate | HTS 2933.99.82.90