Pharmaceutical Grade Levorphanol Base from Japan
Pure levorphanol (base form, INN) is the parent morphinan opioid with quinoline ring system, imported at >99% purity for salt formation. Falls under HTS 2933.41.00.00 covering both the INN compound and its salts as chemically defined heterocyclics. Used exclusively as active pharmaceutical ingredient precursor.
Duty Rate — Japan → United States
27.5%
Rate breakdown
9903.04.6215%Patented pharmaceutical articles that are the product of Japan, of a European Union member country, of South Korea, of Switzerland, or of Liechtenstein as provided for in subdivisions (c) and (f) of U.S. note 40 to this subchapter
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Require GMP manufacturing proof and stereoisomer confirmation (levo-specific); use tamper-evident pharma packaging
• Coordinate with US importer's DEA registration number