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2933.41.00.00/Pharmaceutical Grade Levorphanol Base/Japan

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

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%
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Import Tips

• Require GMP manufacturing proof and stereoisomer confirmation (levo-specific); use tamper-evident pharma packaging

• Coordinate with US importer's DEA registration number

Pharmaceutical Grade Levorphanol Base from Japan — Import Duty Rate | HTS 2933.41.00.00