Papaverine Sulfate Pharmaceutical Grade from Mexico
Papaverine sulfate, a sulfuric acid salt of the natural opium alkaloid papaverine, serves as a non-narcotic peripheral vasodilator in medical treatments. This product is explicitly covered by HTS 2939.19.10.00 for papaverine and its salts, as a separate chemically defined organic compound. It is imported as high-purity powder for hospital pharmacy compounding.
Duty Rate — Mexico → United States
0%
Rate breakdown
9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
Import Tips
• Submit sulfate ion quantification in CoA; ensure <0.1% heavy metals per USP to meet pharma import standards
• Declare exact alkaloid content by HPLC; impurities >2% risk exclusion under chapter note (a) pure compound requirement