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2934.30.27.00/Oxomemazine Base/China

Oxomemazine Base from China

Oxomemazine, a phenothiazine antihistamine with sedative properties, imported as free base API. Classified in HTS 2934.30.27.00 as chemically defined non-antipsychotic phenothiazine.

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
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Import Tips

• Verify free base vs salt form with pKa/solubility data for accurate chemical definition

• Include stability studies proving non-degradation of phenothiazine ring per Chapter 29

• Document EU vs US pharmacopeia equivalence for multinational imports

Oxomemazine Base from China — Import Duty Rate | HTS 2934.30.27.00