Papaverine Hydrobromide Powder from Japan
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 — Japan → United States
Rate breakdown
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)