2939.19.10.00/Papaverine Hydrobromide Powder/Mexico

Papaverine Hydrobromide Powder from Mexico

Papaverine hydrobromide is a bromide salt of the opium alkaloid papaverine, utilized in pharmaceutical manufacturing for its antispasmodic properties. Classified under HTS 2939.19.10.00 as a salt of papaverine per the alkaloid heading structure. It is typically imported as a bulk fine chemical for further processing into vascular smooth muscle relaxants.

Duty Rate — Mexico → United States

100%

Rate breakdown

9903.04.60100%Pharmaceuticals Annex IV: patented pharma articles — 100% floor rate

9903.05.860%Universal product exemption (U.S. note 52(b))

9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)

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Import Tips

• Provide detailed salt composition analysis; hydrobromide forms require bromide content verification to distinguish from hydrochloride

• Ensure compliance with DEA precursor chemical regulations if applicable; include end-use statement for legitimate pharmaceutical purposes

• Avoid bulk packaging over 25kg without anti-caking stabilizers, as additions must not alter general use per chapter note (f)